Mike, I too am in the process of finishing a project that this gentleman and his son from whedbey started. It is a Don Hill 16' HS,(high side) drift boat.Most everything was done to it but have looked very hard at putting the UHMW on the bottome, for protection and to slide over the rocks,launch and stuff.I found these two sites that sell at the wholesale price and found that i could buy a piece big enough for my boat at about $120. So for about the price of a wet coat product, you could put this on. Am going to do it with mine and will let you know how it goes, but i have to finish the sound boat first, need to be able to go out crabbing.
http://www.mcmaster.com/
http://usplastic.com/
Hope these help, I would post pictures of my project if i could figure out how to reduce the images enough to attach them. So anyone with suggestions , I sure would appreciate then, Fishy.......