Potkettleblack:
probably not pass an entry test into a proper airline and therefore be unemployable anywhere else except in deepest darkest Africa or Russia
Africa? Not really possible if you take into account the 200 000 pounds debts you are talking about (bush and low wage in Africa, more suitable for a north american cheap CPL without debts).
Russia, same, to be hired there, you need a russian passport, they don't hire foreigners.
If you learn russian, AND get a russian passport though, (both not easy right?) they are hiring a lot those days.