I think most poeple in this situation will do the samething as me. They will find a person who will give them a loan with lowest fee. But business with loans are really a pressure , you could lose an opportunity then you can get another in future. But when you lost your trusts cause didn't pay the loans in time you will lose more than just an opportunity . So be careful !
Just some friendly advice, be careful borrowing money to invest in cryptocurrencies. I believe some of them will be successful but they are still a high risk investment. I personally would not borrow to invest. For one thing, you don't know how long it will take for a coin to make a profit while you are having to pay interest on the loan. Secondly, some coins aren't going to survive and we really don't know which will. Bitcoin has made such huge gains lately that we don't know if it is currently overvalued and it may not bring as much profit in the next years as some altcoins will. Just some things to think about.
Borrowing for you to buy that coin I strongly agree with that it is not a good way maybe just accept the fact that you are not able to buy that time just because you don't have enough money for you to buy that. Waiting for your time but if you have nothing and there is a opportunity don't be so greedy just accept some fact.