I pulled a black UHMW (I'm pretty sure that's what it is) shoe off a drift boat I restored. It looks like the prior owner only ran it down a river once or twice, and the shoe is in good condition, with the exception of some of the screw holes where the screw heads pulled through when I removed it from the boat.
I'm 99% certain the boat is a Don Hill 16HS: http://www.dhdriftboats.com/driftBoatPlans.html
Free to good home, but you need to pick it up in Kanab, Utah.
I have a 1972 Don Hill 16ft. High Side Guide model that I am putting together now. It came with a UHMW shoe too and you would not believe what a good skid plate it makes for my ATV.
I don't have an ATV, but figure it will be useful for something.