grsjax

How about a Sharpie, They were endemic along the east coast, with several styles to choose from. Each area had their own version.

The Gulf Coast Scow Schooner from Chapelle's "American Small Sailing Craft" would be my first choice.  Any of the sail powered fishing boats that used to be common sights in American harbors.  An unusual one that few are aware of is the Hawaiian Sampan fishing boats developed by Japanese immigrants to the islands in the early 20th century. https://sanctuaries.noaa.gov/news/may20/sampans-of-hawaii.html

About 2 foot. With age a small ship at a larger scale is appreciated.
 

I agree with Cathead, a 2 foot model is good size for most homes.  Smaller models are also a good thing as they can be displayed in otherwise unused spaces like bookshelves and hall tables.  My choice would be models between 9" and 2'.

I agree with Cathead, a 2 foot model is good size for most homes.  Smaller models are also a good thing as they can be displayed in otherwise unused spaces like bookshelves and hall tables.  My choice would be models between 9" and 2'.

I agree with Cathead, a 2 foot model is good size for most homes.  Smaller models are also a good thing as they can be displayed in otherwise unused spaces like bookshelves and hall tables.  My choice would be models between 9" and 2'.

I agree with Cathead, a 2 foot model is good size for most homes.  Smaller models are also a good thing as they can be displayed in otherwise unused spaces like bookshelves and hall tables.  My choice would be models between 9" and 2'.

I agree with Cathead, a 2 foot model is good size for most homes.  Smaller models are also a good thing as they can be displayed in otherwise unused spaces like bookshelves and hall tables.  My choice would be models between 9" and 2'.

One reason to advocate for models under 2' long is that they'll fit through standard 30" doorways without having to turn sideways, even allowing for a case. Any bigger than that and they get more awkward to move around. That also "feels" right for something that won't dominate any space it's put it.

Another type with no representation in the kit world AFAIK is the classic c.1810-40 three-masted Bermuda schooner.
 

A Tancook Whaler would be another good idea.

A Tancook Whaler would be another good idea.

A Tancook Whaler would be another good idea.

A Tancook Whaler would be another good idea.

I know that Bluejacket has a particularly strong connection to Maine's maritime traditions and makes a lot of models of local boats. In line with that, a sailing Hampton Boat could be an interesting addition to the fleet--a small, two-masted, lapstrake-built, open vessel used for fishing. There's a good bit of information on them in Chapelle's The National Watercraft Collection. Personally my vote is for a relatively small model, as I find a lot of kit offerings to be too large given my limited space. A Hampton Boat at 1:24 would be pretty small, but that scale would still allow for a lot of interesting detail work, like adding fishing gear.
Detail from plans shown on page 255 of The National Watercraft Collection:

 
That said, I agree with the suggestions above for something from another region of the US, as so many existing kits are of boats from the central and northeast Atlantic coast. I second the comments for a Gulf Coast or San Francisco scow schooner, and for the CA Thayer or Wawona. I especially like @grsjax's suggestion for a Hawaiian sampan--what a fascinating vessel! And an interesting addition to American "traditional" vessels. A San Francisco felucca could also be another unusual American sailing vessel.
 
Beyond those, I know that Bluejacket's focus is on American vessels, so I won't suggest anything from Latin America. A Biloxi schooner could make for an interesting model, and something a little different from the existing schooners that Bluejacket offers.
 
On the smaller side of things, I also think that the 1883 Key West fishing smackee Jeff Brown would be a great option. At only 25 feet long between perpendiculars, a 1:24-scale model would be of a very manageable size while still allowing for fishing equipment and other detail work. The Jeff Brown is discussed, with plans, on pages 285-287 of Chapelle's The National Watercraft Collection. Interestingly, the Noank Historical Society also has a replica that was built in the 1960s, as the Jeff Brown was built in the Noank style. Site: https://eyh.cab.mybluehost.me/jeff-brown/  Although there are a few differences between the replica and the plans (the replica did away with the fish well and reversed the cockpit, if I remember correctly), I'd imagine that it would be possible to make a very detailed model, perhaps even plank-on-frame.
Detail from plans shown on page 287 of The National Watercraft Collection:

 
Looking forward to seeing what kits you add to the lineup!
 

Old Nautical Research Journals, approx 1975-2000 are a great source of ideas for ship modeling projects.  In those, essentially all featured models were scratch built so ideas gleaned should not conflict with any kits.
 
In particular I am thinking about a series of articles that Eric Ronnberg wrote about the Boston Pilot Boat Hesper.   Pilot Boats are great modeling subjects.  They were designed by famous designers, are small enough to be built to a reasonable scale, say 1:48 or 1:64, have beautiful yacht like lines, and nice finishes.
 
Another Pilot Boat subject would be the earlier New York Pilot Boat George Steers c 1850’s; a beautiful vessel.
 
Roger

The Gulf Coast Scow Schooner from Chapelle's "American Small Sailing Craft" would be my first choice.  Any of the sail powered fishing boats that used to be common sights in American harbors.  An unusual one that few are aware of is the Hawaiian Sampan fishing boats developed by Japanese immigrants to the islands in the early 20th century. https://sanctuaries.noaa.gov/news/may20/sampans-of-hawaii.html

I agree with the gulf coast scow schooner as well as the salmon troller as long as it’s a double ender.  

The Gulf Coast Scow Schooner from Chapelle's "American Small Sailing Craft" would be my first choice.  Any of the sail powered fishing boats that used to be common sights in American harbors.  An unusual one that few are aware of is the Hawaiian Sampan fishing boats developed by Japanese immigrants to the islands in the early 20th century. https://sanctuaries.noaa.gov/news/may20/sampans-of-hawaii.html

The 1836 brigantines Dolphin and Porpoise would make interesting model subjects.  They were the last sub 100 foot two masters built for the U.S. navy and were considered excellent sailers, both having lengthy careers.  Dolphin was burned at Norfolk in 1861. Porpoise took part in the 1853 Ringgold expedition, but was lost in the China Sea in 1854.  At 1/4” scale, the hull would be around 22 inches between perps.

The Gulf Coast Scow Schooner from Chapelle's "American Small Sailing Craft" would be my first choice.  Any of the sail powered fishing boats that used to be common sights in American harbors.  An unusual one that few are aware of is the Hawaiian Sampan fishing boats developed by Japanese immigrants to the islands in the early 20th century. https://sanctuaries.noaa.gov/news/may20/sampans-of-hawaii.html

The Gulf Coast Scow Schooner from Chapelle's "American Small Sailing Craft" would be my first choice.  Any of the sail powered fishing boats that used to be common sights in American harbors.  An unusual one that few are aware of is the Hawaiian Sampan fishing boats developed by Japanese immigrants to the islands in the early 20th century. https://sanctuaries.noaa.gov/news/may20/sampans-of-hawaii.html

Ships from the world's Navies constructed during the transitional period of 1860 to 1900. 

Then things started to get interesting.  The shackle for the prop needed a frame with a routed groove so it could slide up and down.  No part in the kit for that, so I used spare wood pieces from the framework to carve it out.  The kit instructions said to just glue the prop in place but I thought the prop should be able to spin.  So I drilled out the middle between the 2 blades, added the little pipe you can see to the right of the prop, and then inserted a tiny finishing nail as an axle.  It spins when you thump it!  And now I was starting to get an idea of what I had gotten myself into.

Could the issue be as simple as measuring the bottom of the Dory rather than the rail stem to stern?

Measuring the bottom at 2.75 inches and dividing that by .1875 (3/16” = 1’) I get 14.66666 Feet as the length of the Dory as drawn. 
 
Just a thought…