[LMH]

I think (correct me if I'm wrong) the modern CSX cars are rollers or complete cars. No unfinished kits in other words.
Actually built by Shelby is kind of a grey area with the aluminum bodied cars. (insert "Kirkham" here) They do carry "CSX" chassis numbers though and that's important to some and not to others.

I may be adding to confussion here, so I guess the question becomes "what are you really after"? Accurate replication? A "CSX" chassis number? Aluminum body?

Larry