This size of rims fits ?

Q: Does Duster have disk or drum brakes?

Reason for asking is that if the car is a drum brake car or was converted to KH disk brakes from a 72 or earlier, the bolt pattern will be 4" (101.6 mm). If, on the other hand, it was a factory disk brake car, the bolt pattern will be 4½" (114.3 mm). IMO, a wheel tire package that is a maximum of 26.1" high and 9.5" wide with a wheel back space of 4¼" ought to fit a normal A-body wheel well. How you choose to get there is your business.