So a guy just rolled into my driveway at work on his R1150GS the thing sounded awful. sounded like something let go in the top end. He said it just made an awful noise and then lost all power. The bike will start but that is all. Its an early 2000's model with about 83K on it. He may sell it "as is" anybody have any idea what its worth? He paid 5K last year and that seems to be about what they are going for in running shape.