Im looking to purchase a Kawasaki Ninja 250r from a friend at work. The bike is in great shape, and has never been tipped. It has 9,000 miles I looked on KBB and NADA they say the bike is worth 2600 if the bike has 5,400 miles. So how much is it worth since the mileage is almost doubled? Im thinking of offering 2,200 cash is that fair or still too much?