Matt,
I'm working on that one to Matt. I recently bought two 24 foot lengths of square tubing. One length of 2" and one length of 2.5" square. I got tired of paying 20 bucks for short lengths of prefabricated receivers and decided to buy 24 feet. Now I can make all the receivers I want and put them everywhere.
Besides my truck hitch I have receivers mounted on my Dixie Chopper, Cub Cadet, Kabota tractor FEL, trailer and will soon replace both of the wooden support posts in my shop with steel pipe so I can weld receivers to the posts.
I have a one ton lifting boom that I welded a piece of 2" square to the bottom support so it can be used by all of my equipment and will be real handy in those new steel shop supports as well
I mounted an old hand crank boat winch to a piece of 2" square and use it to pull and lift stuff all the time. When I purchased my laser engraver I used the boat winch to pull it up the stairs to my second story shop office on a sled. The older I get the less I lift
.