Wheel tire Combo

I’m looking for a little help

I have a 1972 Plymouth Scamp. I am converting it to a 360, with a 4 Spd, an 8 ¾ and large bolt pattern Disc/Drum brakes.

I will be ordering new leaf springs and axles in the next few days and need to find some wheels and tires for it next.

I want to run the Rallye wheels but don’t know what people are stuffing under the fenders now a days. I have seen reference to standard rear axle off set or A-body axle offset but not sure how much the difference is.

I have also read that a 245 tire is the widest tire but what size and offset on the wheel is used?

Any thoughts or past experiences or even pictures of what you installed that would help me decide which ones to order?