nice work
Interesting the different models of V20s. Yours had a full transom and it was flat all the way across. My 84 cuddy had a motor well and the transom angled from the sides. it was actually 3 pieces of plywood.
I was concerned when I first saw your post that you didn't consider that but I can see in the pix its OK. If I used a flat transom on mine the cap and motor well would not have fit when they went back on.