This is as far as it ever got. Photographed and crushed. It was an interpretation of the Roswell design I did post. And I did post the frame (based on a silver Streak Clipper i owned). Today I'd use a Gothic arch.
Stitch-and-glue plywood would be a good choice. I experimented with Polymetal.
The thing I like is it's prefinished. So construction could be really fast.