Home made receiver hitch game hoist

[JonBoy]

Calling all fabricators (and I dont mean liars!). I have been working on a game hoist in my garage and was wondering if any of you welders out there have made your own. I made several but have not made any that swivel. Have any of you made swivelers yet, and if so, how? Im sure there is a bearing of some sort involved. Personally, I never needed one to "swivel" but it seems to be the rage now.
I am also planning on fabbing a light fixture of some sort. One that extends and retracts and plugs into your trailer lights. I am not an electrician so I need some input on this as well. Thanks in advance.

http://www.amazon.com/Hitch-Swivel-Hunting-Hoist-Gambrel/dp/B006VWVFQ4/ref=sr_1_6?ie=UTF8&qid=1412612179&sr=8-6&keywords=hitch+game+hoist

This is the one I bought and it swivels 360 degrees. Its got an up close pic of the swivel to give you a better idea of how its made

As far as lighting is concerned...check out my DIY post on tricking out my hoist with flexible LED strips: http://discussions.texasbowhunter.co...d.php?t=389778