Thanks for all the tips, it gives me some good ideas.
Yeah the folding method I am going to try is experimental, it could all end it tears, I suppose that is half the fun. I will post the results.

: To determine weather or not your canoe is too light depends on what you
: intend to use it for. As is, it obviously works well enough to at least
: float you, and it will likely hold up fine unless you intend to abuse it.
: I would either add more ribs/cross sections to support the relatively
: light chines, or beef them up (to 3/4" x 3/4" perhaps) if you
: want to stick with three cross sections. I used 1/2" x 3/4" WRC
: chines on my SOF canoe, but I have steam bent ribs on 6" centers and
: think they could still be better supported... Your gunwales are probably
: ok, as is the keelson.

: I'm interested to see how you turn it into a folder.