If I will be in your shoe, I would not risk that big. I mean, you are saying that it will not really affect you, but taking a loan just to buy bitcoin? You know that every crypto currency is having a volatile price, and you're not really sure what will happen next. But if I will be really in your position, I won't do it.
It is a big step if you are really brave enough to loan and buy bitcoins . There are many things you should consider before loaning, you must think if you are capable of paying it until your due.