HSBC will give you everything you need!!! Professional Development loan is specifically for people training for Medicine Dentistry and CPL, check out their web page and call them they are really nice an helpful, not like many others I have approached. You can borrow 100% of training costs plus living allowances and you only start repayments I think it is 6 months after you finish you training! Interest rate is 2% above base which is 4% at the moment. I dealt with the HSBC in Oxford as they were familiar with the flying industry.
Good Luck!!