I am actually going to build one of these.... I figured there would be no interest so I hadn't planned on posting it here, but after talking to Yammie and others in the shout box I think this is a go. I have MOST of the stuff to do this. Going to start on it this sunday. I will post it up then, until then Yammie you will have to wait in suspense. HAHA
I still think it would be important to make it so it floats if (when?) you bail....
One cubic foot of air will float 62 pounds.... so if you leave the fuel tank mostly empty that would help. Replacing the seat with something that floats might help too......