Tim --
To your question about a graphic of the scroll work: the Campbell plans have one, I think it is at 1/4" scale (different from the 3/32" scale of the main parts of the ship). But it's flat and shows the scroll work well. It is on either the Rigging or the Sail plan.
I know the Sergal "photo etch" for the transom scroll work -- for that matter, the bow name plate and trail/head board as well -- is not very good. If you decide to go another route than engraving, there is a company, HiSModel (https://www.hismodel.com) that offers a very nice photoetch set of the bow and transom scroll work for the Billings kit, but I think will work on the Sergal kit -- not that different in scale. I bought it -- not very expensive -- It is a significant improvement over the Sergal "photo etch" and is very close to the actual ship. I've got a 40+ year old Billings kit and the Sergal kit, and will tackle probably the Sergal kit after wrapping up Syren (now in masting and rigging) although I'm pulled toward Chuck's Winchelsea.
Anyway -- FYI.
Allen