since we know each other personally, and are local to one another, may I start an offshoot of this thread with you. And I seem to recall you had a background of dealing with numbers so....
Could you state in general terms, the cost (minus the airbrush since those are personal choices) of the set up for a compressed air arrangement. Others can chime in also, please.
Set the cost long term say over five years so the tank pressure test costs can be rolled in.
TIA, Jim Dick - St. Paul