Oh, just buy the Kirkham and pay Carroll $250 to have the glove box door signed. Best of both worlds...done.
EDIT: Seriously, I don't own either but the engineering and attention to detail that goes into the Kirkham is quite impressive. And you don't have to go with all their billet upgrades either...the base car is quite nice. If you build a nice car with the right components, I believe that many will overlook the pedigree issue and buy the nicer of the two cars. That being said, I know that Hillbank had several CSX rollers available recently and they all looked quite nice (and in the $55-60K range sans drivetrain).
-Dean