This might sound funny. I knwo one pilot who was on reserve and worked at one of the airport subways. He let management know his sitiuation and when he got called to a flight he left, changed into his uniform and went to the aircraft in the other terminal.
Part time cop or part time teacher might be ideal as well. Just dont get shot when you supposed to be at home reserve. LOL. I have heard it to be a good part time gig however. Keep looking at your options.