Well, I know one thing, you inspired me on that thing. One thing that I regret is often where i cut the hills are steep, and often really good wood goes unused cause I sure dont want to pack that wood all the way up the hill, and my winch will only extend 30 feet down the hill. I have tried before using extra cable, but it got to be more of a pain than it was worth, always having to unhook the several lengths of chain or cable as they came up the hill. Your rig looks like it would hold a good bit of cable length! Not to mention overheat any electric motors like I suffer with.
Good job! I like it!