Hey guys, my wife just got a new air brush powered with compressed CO2. She is a very talented artist, but I want her to paint my firewall and inner fenders of our 53 halfton. If she had the proper nozzles, could this area be painted with an airbrush or are we pushing the airbrush beyond its limits. Nothing fancy, just match the exterior paint we have on the truck??? I don't have a regular gun or large enough compressor to handle one. Any thoughts on this??