Sorry to be so negative but if you can only afford to fly once a month now, how are you going to be able to afford to fly once you qualify?
Leaving that aside I would do what tacpot suggested, bung it on the credit card, enjoy the training and worry about the bill later.
It's just to much fun to worry about money
28th,,
P.S. I am off for another credit card....well they can only kill you once.