Bought an old Sears Gamefisher fiberglass hull. Cut it down to 13" height, removed all the seats, built new seats of marine ply, decked it over with the same material, covered all the wood with woven 'glass cloth. Did this in 1990. I still have the boat (plus three additional boats!) and it's still solid as a rock. Empty, it weighs 96 pounds and is 12 feet long; perfect for one man and one dog. I originally had a 20hp Merc on it, went to a new 25hp Merc in 2002, then to a new 15hp Merc in 2003 (all two-stroke).
The boat was featured in Chuck Lichon's Boats and Blinds department in an issue of WILDFOWL MAGAZINE in about 1991 or 1992.
I've built a lot of blinds using this boat, scouted a lot of backwaters, made a lot of oh-dark-thirty runs in it, and killed a lot of ducks out of it. It has a lot of "me" in it and I can't see myself selling it.
Often wrong, never in doubt...