Super Ceap Auto offer 12 vlt winches that one would fit to a 4wd.
I got one to move my roll off shed.
They have forward and reverse, mounting bracket, forward and reverse control hand paddle, a length of cable, and the leads to connect to the power supply. New I paid $150..they had them at $130 but I missed the sale unfortunately.
I cant recall their power but I can sit in the shed whilst it gets dragged along
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alex