I had wheels at one point but the problem is the boat would ride up on the wheel and the flat area under the corners of the front deck would scrap against the top of the wheel.
We have aluminum docks with stone tops. But, I can bolt into the aluminum.
Was thinking of these.
Too bad there wasn't something like those big exercise balls. lol Just get close and let it bounce itself in.
Taylor Made Bumper http://www.amazon.com/Taylor-Products-Heavy-Bumper-Corner/dp/B000MTVUG2