See post 55 of this thread for the figures I posted. They are conservative from the point of view that they don't include living money etc. and also they assume that you will get a job: a big assumption.
Although my figures presented there just add-up and say you might be able to pay off the loan and live, it's close enough that I wouldn't do it-a small interest rate increase (as recently) and you'd be stuffed.
Another point for you there-could one afford a 2%-5% increase in interest rates over the repayment period? Don't forget that rates are presently on the increase (though slowing): increased interest rates on loans and mortgages is real and has to be planned for.