Understanding your paint woes, I would suggest that you go out and get a simple, cheap white car shelter, you can close each end, hang from the frame and you don't care if you get paint on it. I used one for lawn equipment that was 8' wide by 12' long, it worked great easy to setup and take down. I added a couple of 24" fans on one end and some cheaper furnace filters on the other to mimic a cross draft booth. for small parts and the aluminum panels that will get lizard skinned etc... it'll help ALOT!
Here's a pic of the smaller one I used. 20190824_120155.jpg 20190824_120201.jpg

PS. When priming the small parts I held the hanger such that I could spin it in my fingers to ensure better coverage and I didn't have to spin around it. Then I could hang them up out of the way. Have fun!!