I know exactly what I have in mind. I want to build one that swivels on a pipe base. Up about 12' high, then about a 12' span of I beam and back down with pipe or I beam on the other side with a spindle and tire on that end to roll it in front of the shop for loading and unloading and then to be able roll around to the side of the shop for disassembly and cleaning. I even already have a really cool vintage chain hoist and a I beam trolley. I don't see it happening, though. lol