I suspect the main issue would be availability of information, more than anything else. Considering that the same printed paper format was used an all of the carlines, just model-year-specific. Although many years would be very similar with only minor changes for each model year. A-, B-, and E-bodies would be where the main "need" for these stickers might be, unfortunately, so those are the ones which are available.
On one hand, they should not be hard to duplicate in our modern world. Get one of the items for a B-body or whatever, then do a high-res color copy of it, blocking out the typed areas on it Actually, make several copies as you finesse the location and spacing of the typed content. THEN find an old IBM Selectrix electric typewriter with the correct font ball and some "used" cotton type writer ribbon. Figure out the format (spacing and such) and enjoy!
It was always easy to tell when a dealer typed their own window stickers. Never did have the expensive IBM typewriter with the correct font ball on it, plus their ribbon made a solid image rather than the somewhat worn look of the ones the factory supplied. Some of the apparently repro stickers I've seen on cars at Mopar Nats tended to be this way, too.
I'm not sure how various copyright laws might come into play with a copy of a licensed item. But as long as the complete paper item is copied, with the correct copyright indications on the blank paper item, possibly?
Just some thoughts,
CBODY67