Most lenders here are long in bitcoins, which means they don't want to convert their position to USD and lose out on coin appreciation, so your scenario doesn't fit. Convincing a traditional bank to fund your bitcoin business really isn't going to happen, not necessarily because its a bad business idea, but because bitcoin is an unexplored minefield and no bank wants to be the guy out there exploring it first.
If lenders are long on bitcoins, the last thing they'd want to do is borrow money denominated in bitcoins. If bitcoins go up, they lose money. If you're long on bitcoins, you borrow USD and buy Bitcoins. That way, if Bitcoins go up, you make money.
A lot of people misunderstood this and thought that Pirate was long on Bitcoins. They figured he was holding some large number of Bitcoins and that therefore when Bitcoins went up, he made money. But of course the truth is the reverse. Every Bitcoin he held was owed to someone and then some, so when Bitcoins go up, he loses money. There's no conceivable way anyone who accepts interest-bearing investments denominated in Bitcoins could hold that fund with an amount Bitcoins that total equal to or more than the amount invested (except at a loss).