I messed up a little and waited until -after- painting and buffing the car before painting the inside of the trunk. I was sweating bullets, worrying that somehow some over spray would escape and ruin my paint job. I masked off the whole car, stuffed rags in all the places I could find where paint might "get out" of the trunk, wrapped it in plastic sheeting bumper to bumper... then took a deep breath and did it. Whew!
Except for maybe a bracket or small part I might run into now and then, I think this means that all the painting is now done and I can get serious about assembling everything. I put the rear seat covers on this weekend too, and they turned out pretty good.
Still to go: front seats, carpet, door panels, steering wheel, console, shifter, headliner, all the glass, about half the stainless trim, tail lights, rear wiring harness, wheels and tires, rear bumper, exhaust tips, bleed the brakes.