1) Forget the use of the word bond.
You pay the course fee. If you take out a loan for this fee of £70k+, you repay it in accordance with the loan agreement.
2) Employment after finishing the course is dependent upon the situation when you finish the course. You will have no guarantee of a job, which is true of most courses.
Others can update on the situation today.
3) Best course is to get a tagged scheme, e.g. BA. This question is for another debate.