[Jared]

Hi, Jim,

You could modificate servos for continuous rotation and that gives you a speed control and gearmotor in one compact package that can be plugged directly into the receiver. Or mount your winches underneath a platform that the machine sits on and run the cables up through the center of the swing circle. Just have to remember not to swing too much and get them twisted up. The hard part in either case might be the swing.

I think your pond is pretty neat, especially the locks! I'd like to do that same sort of thing someday but the problem is it would be full of ducks, nutria, muskrats and labrador retrievers. Sounds like your tug has Jimmies in it.