the sport version also has a frp chassis, not a carbon chassis.
I think i also had contact with your friend about that same car. Does it also come with a rc10l3 oval chassis etc?
I still have a rc10l2 (same as rc10l3 except 235mm) and spares is not a problem. Axles and hubs are IRS, and you can still buy the old crc aluminium bulkheads wich are the same as assosicated. T-bars are not a problem either.
All the parts are interchangeble from other brands 1/12 and 1/10 as long as they use the old version associated style front suspension.
For front suspension you can use crc's, hotbodies, bmi, corally etc etc. They are all the same copy from asso except for some small tweeks here and there. On ebay you can still find bottom and upper plates sometimes.