It might not be all that much of a stretch, depending on what cars you would want to use and the date of their use, in part because of the wholesale sell-off of some equipment. While a 10-6 sleeper would be a stretch (too important to the core fleet) some other sleeper types did see service into PC but were not sold to AMTK, leading to some notable retirements of entire classes. These were most often smooth sided cars, though, as the corrugated cars did tend to have a bit better of an existance.
