Some terrific ideas, thanks so much guys! Marlin, I'm intrigued by the approach you took. Actually, a friend who owns a body shop is helping me with this and his suggestion is quite similar, basically some form of spray in Rhino Liner like they use to line truck beds. Don't know if that's the best option. But maybe someone in the forum has had some experience with this approach? Otherwise, I might go the route Marlin took.