I can do this (if the loan is still needed - this is unclear) however you would need to raise the amount of interest you would be paying and agree to a clause that the amount you will repay (in terms of bitcoin) will not be below a certain amount (TBD).
You can either post here or PM me to negotiate details, and then we can arrange escrow to be setup.
still needed indeed, but can't pay more than 1% (so people, don't ask anymore, told this more than enough), and no, i'm not interested in betting on the btc price (I don't care wath it is), i'm not paying anything if it goes up. I agree paying more to the escrow if bitcoin goes down for your safety. But you cancel at any time if you find the bitcoin price is going up too much you just ask to get repaid...
But i suggest just buying new bitcoins with $ and lending those out (then i sell them), then you are sure of your profit.
12% interest is much lower then the interest rate you will generally see on these forums, and is really not enough for someone who does not wish to sell their bitcoin and risk that the price will increase in the future. The rates on bitfinex are roughly double of what you are offering (although the risks involved with lending on bitfinex are different) which should be a starting point to base any negotiations on.
You also mentioned that the lender can cancel the loan at time time to protect themselves if the price has gone up too much. Would you be willing to allow the lender to cancel if the price has gone down? This would result in the escrow releasing more funds (in terms of btc) then were lent.
For the first thing you give an answer yourself, there is a risk involved there and you can't cancel the loan at all times. Secondly you have to see it as lending out dollars, neither me, neither the lender should think about the bitcoin price, it's irrelevant for this loan. And yes, I would allow to cancel at all time. Like I said, I don't care about the bitcoin price, I just buy them to transfer the loan back at the end.
I agree 12% interest is much lower then the interest rate you will generally see on these forums, but on these forums you are talking about you see a risk for the lender which is not here. Even a lot of loans are without collateral :s. It's not a bad loan for people just wanting to have a good intrest rate on their fiat currency. If a bullish bitcoin-guy like you is not interested in this loan, fine, but for some people it could be interesting.