I'm posting this up because it is neat as can be... not because it's priced reasonably.
Trailer Mover, Capacity 3000 LB, $700 Firm
I built this to move my boat around in the garage in lieu of using my garden tractor. I'm running out of room in the garage so it's gotta go and the tractor stays. Powered by a brand new modified Heavy Duty Super Winch, it'll move a 3000 LB load without problems, chain/sprocket drive. Battery is a brand new deep cycle marine battery, also included is the onboard Battery Tender shown in the photos. Has push button controls on the handle bar for FWD & REV., manual clutch engage & disengagement for free wheeling around.