I have electric winch to pull hide off Coyotes and Large Coons.
A friend uses a boat trailed hand winch, mouted to a pole, which works just as good as an electric winch.
Here's anchor point in cement floor (chain bolted to floor)
Tail and Flanks skun, Vice-Grips fasten to flanks (Vice-Grips have wide washer welded to each jaw for additional grip...
Going up...
Just about to the shoulders...
Legs ringed and pulled, we're down to ears no need for e-winch from this point