Spray Booth setup

This is my Spray booth. I built it about 20 years ago from an old instrument case-it is solid steel and weighs a ton! The case has glides to allow the chart recorder it once housed to be slid out for service , and they support the work surface. The exhaust fan is a 12 V fan that my Dad had purchased to boost the heater of his 1970 VW MicroBus, powered with an old American Flyer transformer. The Freon tank serves as an air reservoir, and the Regulator/dryer was put together from 3 broken ones I scavenged from the scrap pile at a former job. The compressor is a little diaphragm job on the other side that i picked up at a flea market. When I first set it up, I used a weed sprayer as the pump/reservoir, which worked OK for N scale models.