I found a guy thats offering up an 07 M8 with a 153 track. It only has 500 miles on it, It was a dealers demo sled last year. It has been wrecked. There is a large gouge in the belly pan and he had to replace the tunel extension. I saw the old parts off the sled, and the extension has a kink in it. What could this sled be worth? If anyone has an idea of value please help me out.