Wheels for a duster offset and backspace

Garys72Duster said

Just lay a steel ruler across the face of the hub where the back of wheel mounts. Then measure the distance from the ruler to your leaf spring. Deduct 1", and that is your max back space. My Dart measures 5.5" there, deduct 1", I get 4.5" max backspace. The tire will take up 1/2", then 1/2 " clearance to the leaf. That's how I understand back space.

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I also have a Dart 1973 Sport. I used to have a Crager 14x7 or 8 in a chrome reverse.
I would love to find that same wheel setup but unsure of the specs that would work.
The car is stock and will have Air shocks on rear.
You pretty much answered some of my question with the 4.5” backspace. So I go with a 4.5 back space and what would be my maximum with using a chrome reverse wheel? I also remember that I ran G 60 14 tires on rear.
thanks to all.