I used to haul heavy equipment using 8000 lb cheap 12V winch.
If you have good size battery, you will really like 12V over 120V.
Having 2 batteries with Powerstroke, I did not have to bother about having engine running.
I could pull 9000 lb forklift up the ramps at 45 degree angle, even when front of the forklift had wheels in the air at the angle and I was dragging front plate on concrete.
That was done with doubling the cable on 8000 lb winch.
Bottom line, Harbor Freight winches work well and work long.
Than I was religious about proper cable spooling when the job was done.
Bare in mind that winch pulling power change with the row of the cable on drum.
What is 8000 lb on first row, becomes 6000 lb on second and maybe 4000 lb on third.
Still couple of pulleys will get everything done.