I think this stuff has been posted here before,
http://www.flutedbeams.com/home.htmlbut last I saw, no one had tried it. I know some people think heavy-duty, rigid sides are a good thing. So, has anyone tried it yet? I played with some at the woodworking show in November, and it really is bendable wood. Sets when it dries.
You could have 1 inch think sides, cold bent, and no linings or laminating needed. No end block or heel block. You could dovetail the sides together instead of doing an end wedge. You could even rabbit in the top and not need to worry about bindings. It'd be a little on the heavy side though. But think about how it could be carved, and you could sit on it.
I think it was pretty pricey though, even by luthiery standards.
Mike