kbb trade in is $3,890. Don't use retail $5,645.
I would be bidding on that one! Remember though that you will have to put a chain kit on it, maybe a cush drive, possible tires too. 24K would indicate that it is on it's second set, toward the end of the second set too. Possible brake pads. Budget 7 c-notes.
bottom line you will be paying 5,200 bucks for the speedy if you purchase the speedy for the buy it now price. 4,500+700