the floor pan is original, it was painted during its racing years. the floor just rotted out from a leaky windshield, the whole body is twinged. it sat quite a while after it was last raced. the guy was drag racing it with a 500+hp W2 motor yanking the skinnies with a 4.56 spool. it eventually blew off the drivers side frame connector which was not welded real well due in part that it had fenderwell headers and lacked structural bracing to make up for the lack of rigidity in the fender aprons with the holes cut in them for the headers.
you are right aftermarket repop floor pans will work, but they are not quite the same as stock ones. you have to remember this year dart was the lighter designed version of the same looking car of previous years.
