Escrow Required
Explain your escrow. As for the collateral, it needs to equal or exceed the value of the loan.
The escrow would take the coins from both parties then give the coins from the 1st to the 2nd and vice-versa. Prevents being scammed. I guess I'll forget about a loan since I don't have 5K in collateral
Right since you would be able to buy the miner by yourself if you had 5000$ available
If your project is sound (do the calculations twice then do them again to be certain you will make a profit), convince a few friends and your family, everyone likes to make easy money