I think, because you are not a home student, if you take out loans, your loans for school must come from America - because they do not loan money for school to non-residents in the UK.
So, you would be on the USA loan repayment system. Not the UK one!
At least, that is what I was told.
I have 2 classes left for my Phd... No loans for me here at the moment (not here 3 years yet and they do not loan money for anything over a B.A. here - it needs to be an actual bank loan, not a student loan?!). Also, I must pay international rates, and, here, half the classes do not carry over... Sucks!
I will eventually have to just take them online from my old university in the States (cannot afford that right now), or if I decided (insanely?) to start all over here... I would have to redo almost the whole major!
Best bet, ask at the school.