check out the archives for Mike Hanks "plywood walrus"

basically he took the George Putz design for a SOF (the Walrus design) and instead of covering the frame with canvas he covered it with sheets of plywood.

Your very thin plywood sheets would be excellent for such a use. In the case of the walrus, which uses a "trestle" design to brace the chines that form the sides, the plywood would replace these bracing pieces, making construction faster and simpler.

Bending the panels is not going to be a major concern. In most SOF designs the fabric bends at definite lines over the chines, and stretches into a flat shape between them. By using the chines to define the shape of the necessary panel, and then joining the panels to the chines with screws and glue you acheive a very light, very structural boat. Seal the seams on the outside with a layer of glass cloth, or just fill the seams with filled epoxy resin and sand smooth.

You should not need to scarf your panels. Butting them side by side as you assemble them to the chines should give you a fit which is close eough to be barely noticeable. To prevent leaks at this joint you can use a scrap of plywood epoxied on the inside of the boat to overlap the seams (this is called a "butt block") or use a 3 inch wide piece of 4 ounce or 6 ounce glass cloth and resin. For a really neat look, do the entire area between every two chines with a long strip of lightweight glass cloth, then, while the resin is still little soft, or "green", trim it close to the chines, and then come back later to finish this edge with a small fillet. Since the glass would not go over the chine you would have far problems with having to bend the fabric over such sharp angles. Of course the chines would be coated with epoxy resin to thoroughly water proof them.

Just a thought. Good luck with your project.

PGJ