I would not say that is worth the $2500 that he owed you. The chassis looks decent but I would say that it is worth no more than $1000 with the wheels and tires. And the motor wouldn't be worth more than $500 if you ask me. The blue right side maxxis are older tires. And you will need a body still and a tach. All that stuff may have been $2500 brand new but that isn't brand new anymore and unfortunately go kart stuff depreciates pretty fast, especially if the chassis isn't a PRC. JMO