Fair price for a closing cost money lender

[John Moore]

I am negotiating a contract with a money lender who will be putting up funds to be held aside to cover my 10% closing fees on a wholesaling deal. These funds will of course never be debited, only held aside until I am able to sell the deal to my investor. My question is how much do you think is fair for to pay for this service? The money lender is requesting 50% of my wholesaling fee, but it seems like a per day fee would get me a better rate for this deal. Does anyone have any experience with this and can anyone give me a suggestion on how much would be fair to pay for this?