You are making too big a deal about this. You don't NEED "Mopar" "A body" wheels
Many other Mopar cars used the SMALL 4" bolt pattern. The K cars, at least some of the Chrysler mini vans used 'em, I'm not familiar with the more modern heavier FWD Mopar cars.
IF you have a car that has the newer 4.5 pattern, do the same thing GET ON Craigslist or other local "nickel nik" ad newspapers and round up most any Ferd wheels, LOTS of junk on sale around here, snow tires, etc
But as others have posted your FIRST job is to MAKE SURE what the bolt pattern IS. Some of the newer cars ??72-3?? used drum brakes and may or may not have been the larger pattern. The car, if older, may have been converted to disk brakes, and it may be EITHER large or small, depending on who did the conversion and the parts they used.