Xtreme, and I apologize for spelling your name wrong on the other thread,
A bare chassis is $6,000. With the four corners hung (no brakes or shocks), it is $8,000. Drivetrain is a broad term covering a large dollar range but I can tell you this. Properly done, with all new components, in "Go-kart" condition, meaning that all systems are there to get in and drive it around, it is ready for a body, about $40,000.
Charley