There is a guy local to me selling an 07 motor with 4400ish miles on it. He's asking $700 for it, I didn't take a good look at it but the motor was clean and I saw no scrapes on the left side. It was in a bike that was crashed pretty bad though.
Here is the link to his ad. You can text that phone number in the link. I stopped by and talked to him a bit, cool guy from what I could gather. He drag races a busa, did track days at one point and used to ride mx. I don't see why you couldn't get it cheaper form him, he was open to offers.