3 ) You will have the collateral that is the details of one of my credit cards, and one of my current accounts.
75 BTC = $52,500
To even be considered collateral the credit card and account would have to be worth
much more than that.
If so, I have a much easier idea:
Take the money out of your account, get a cash advance on your credit card and BUY the BTC. In two months pay off the credit card and put the money back into your account.
The interest charged on your credit card will be less than the amount I would charge you for the loan.
If you can meet me in person I will even sell you the BTC for cash. We can even arrange to meet somewhere nice.
Win - win - win all around.