I have a bathroom vanity cabinet which has been previouly painted---I think once only with a white waterbased latex high gloss---although I'm not sure. It has been sanded and is ready to "paint". The sanding has removed the paint in some places so bare wood (fir) is exposed in a number of locations. My wish is to minimize the work involved but end up with a satin finish in an "expresso" or "cola" colour that will stand up to bathroom use. I'm equipped to do spray "compressed air" applications and have used water based polyurethane products extensively to finish new wood projects. Im not into lacquers! Any suggestions?