Build Your Own Truck Frame Rotisserie - Cheap!

I need to be able to clean and coat the frame on the Project True Spirit truck, and the easiest way to get to all parts is to be able to rotate the whole frame a full 360 degrees. Instead of spending $2000+ plus on a pre-build rotisserie, I decided to build one myself, with a total build cost of about $150

Update: Having used this for a couple weeks now, I'd add a couple modifications.
1. Make the inner coupling tube 1" longer, drill a hole through it and put in a pin to prevent the two pieces from pulling apart (I dropped the frame once moving it around)
2. Drill a large (1/2") hole through the outer coupling tube and weld a nut to it so you can run a stop bolt down against the inner coupling tube to hold things at a set angle

Small-quantity round DOM was purchased here:
https://allmetalsinc.com/
Wheels are Harbor Freight
Everything else was lying around the garage already.