I have one of these: ht tps://www.portablewinch.ca/products/pcw5000-gas-powered-pulling-winch-gxh50
It's not very portable, in spite of the pictures that make it look easy. The gas seems to last forever, so no need to take extra fuel. It there are sturdy trees nearby then you are good to go. If not, there are other options, but not as simple, like a 2" hitch adaptor, assuming you can get a vehicle nearby.
It's very useful for hand logging, moving small buildings, or loading vehicles etc onto trailers. I think it might be useful for hunting if the terrain is very steep, or very rough. Thats where I have used it for hand logging when I lived in BC. Not much wild terrain where I live now.
If a moose manages to get to a swamp or thick steep bush, it would definitely be useful to extract the animal to an easier place to gut, skin, quarter and bag. At least for old, fat guys like me.
Somebody once said, You don't have to crazy to hunt moose, but it sure helps.