In this situation I think you've got 2 choices. First would be the safe bet which is all in pre flop. I'm not sure I like this with something as good as KK and hero desperately looking for a double up. Choice two would be a raise to either 3600 or 4800 and then getting the rest in on ANY flop. I don't think folding is an option no matter what happens here. Overall choice two seems to be the best approach if you're looking to win. If this is for obscene amounts of money and moving up is key, then the safe and secure push pre flop is the way to go.