I have to repaint the lower cowl because the stripe is in the wrong place. So I made a paint booth at home and did the painting. The tarp is a 10x10 shed from Harbor Freight. Cost about $69.
I sealed the floor with a canvas tarp. Taped all the edges shut. Put in a fan and exhaust hole with a filter. Everything worked okay.
I was going to repaint the upper cowl, but I think I will pass for now and build on. I have a few more things to do before first flight.