Chined hull modeling software I've been using Carlson's Hulls program for doing quick designs and working out ideas about chined (plywood) hulls....
Old post, but I've just got to say that engine is fantastic. Good luck with the whole project.
I'd go with what FMS says and simply replace what was there. Any good online boatbuilding source will work for epoxy, fiberglass and fasteners....
Good luck with your build. It's always impressive to see a boat being built in a house. My wife always hates that!
Are the plans till available?
Good luck with your endeavor
Are the Buc 24 plans still available?