Der Alte Rentner

It is indeed.  For me it's indispensable for shaping the planks.  One feature I wish the table on the mill had was a feed drive.  turning that crank for long planks by hand gets very old very quickly. 

I looked at the upscale version, but the table on that didn't seem mechanized either.  Note also the use of two vises to hold longer planks.  Take a look at Mustafa's build log, he makes great use of the Proxon mill. 

One tool I wish I had in a smaller size is a thickness drum sander.  I could be making my own stock instead of struggling with the lousy material in that kit.  Those 1/8" (3.15 mm) planks vary as much as 10% in width.  

When we moved into the house we're in now, my plan was to move my woodworking gear from the basement of the old house to the new one.  We opted to take our time with the move, so did not sell the old one immediately.  As we were moving things out of the first into the second, I notices sawdust EVERYWHERE - despite having two dust collectors and the basement not being on the house's HV/AC vent system.  That led me to the search for a small unit elsewhere, and I am glad I found the place I'm in now.  I don't care (that much) about dust there, and if I want ventilation, I open the garage door in back and the man door in the front.  Plus it gets me out of the house.  

I did something similar. I traced the curves onto a piece of scrap plywood.  Then where you used pins, I used dowels protruding to a smidge below the height of the waterway.  I soaked the waterways about an hour, set them between the dowels, and used a steam iron to set the shape. I saw that technique somewhere at the website but can't remember where.  

Like me, you followed Bob Hunt's direction on the waterways.  I think they're too flat and the bevel isn't steep enough.  If you look at pictured of the waterways on the Constitution, and/or consult the plans, you'll see that they should be a smidge taller and less deep.  Not being a stickler for absolute fidelity to the original, I have no problem with keeping them as they are -  just pointing it out in case you feel differently.  

I noticed you got the sanding tools I mentioned in my log.  They're great, aren't they?

Lastly, hard to tell in the photograph above, but did you not bevel the waterway at the stern?  I think the angle where it will mate with the section going across the stern should be about 45 degrees.  No? 

I'm not sure I understand the question.  If you're asking, did I pre-bend them?, the answer is yes.  I didn't have pictures, at the time, but tried to describe the jig I built to shape the waterways to fit.  For the pieces at the bow, I cut them on the bandsaw to fit the arc. I did not use Mr. Hunt's make-them-from-two-pieces strategy.  I had extra material and used the plan to make a cutting template.  I believe you'll see that process in my build log.  Hope that helps.