This has probably been asked before but I can't find it. Has anyone tried making the body of a TD out of Styrofoam and coating it with fiberglass? I know that surfboards are made out of it so why not a TD?
If you make the walls, roof, and floor out of dense foam and coat it with a 50/50 mix of Elmer's glue and water, the resin from fiberglass wont melt the foam. I've seen people make fenders and other things like that, and the foam didn't melt and it looked good. Wouldn't that make the walls lighter, and insulated?