Alternatively, buy yourself a dinner jacket, pop down to London and make some enquiries at a few escort agencies. As long as the missus is understanding, you should be able to make enough for your course in a few months.
But seriously, I've had too many jobs to remember, generally more than one at a time, in order to pay for my training. If you do take this option and can get part-time work at your flying club, it can pay in the future. Good Luck