Every time I sail, I have to pull my trailer by hand about 500 yards out ot the end of the pier. It's reasonably flat, but still fairly exhausting. The yacht club has some nice little hand trucks with trailer balls on them. I'm looking to make up a motorized version of the same thing. Ideally electric. Has anyone made or seen anything like it. Ideally it would be sort of like a rototiller with a hitch instead of blades.