This is the setup we have at my grandparents' to hang our deer for gutting/skinning. My uncle bought it http://huntingfishingplus.com/best-deer-hoist/ and put it up last year after Christmas, so this is the first time we've been able to use it. It's basically an electric wench mounted in the raftors of a sheet metal building. There is a switch mounted on the wall. The beams that it is mounted on have been reinforced. The other part has four hooks and rotates 360°. We can hang five deer at the same time. It's high enough and the dogs can't get to them.
[Linked Image]