I really think that you should reconsider.
I have paid for a TR on the NG in the beginning of 2006 but never found a job.
Instead of that I paid for another TR with a proper job offer with a TP operator.
I really think that it is useless to pay for a TR without any job guarantee. In case of you think that I could be the problem, please reconsider. I have three friend of mine who are exactely in the same position. Big hole in the wallet and no jet job. Two of them were rated without hours on type and the third one has been fired by Air berlin after 130 hours and he's still looking after one year.
Do not pay to work as a F/O, you're destroying the whole profession as well as yourself. Even if you're decided, good luck with eaglejet (huge prices and waiting times), pegasus and the few others who are running this kind of buisness.
With eaglejet you pay the whole UPFRONT and depending where you're going you can get into big troubles to get what you've paid for.
Try again, work harder on your cv, cover letters, relationships... It will happen.