Someone I know has use an inflatable booth. He likes it. After each use you need to clean over spray that is on the surface. He told me that folded and rolled up it's size is a little bigger than a 50 gal drum.

Back in the 80's - early 90's it was $25 to rent the booth at the auto hobby shop on the Navy base for 24 hours. Painted many cars there. Good times.

I bought an inflatable booth last year to paint my Challenger. Neighbors thought I had a giant bounce house! Worked great. It does get hot in one tho. Mine has 2 blowers, one to inflate the booth, one for ventilation. I paid about $1800 for the one I have. I've used it a bunch of times painting, so it's paid for itself. I might sell it, if anyone's interested. Tried to post some pix, but they keep coming out upside down!