1968 Barracuda Rallye Wheels ?

I got a 68 Cuda convertible formula S with steelie wheels.
Fronts are 5.5'' on 4 14" wheel 31/2" back space I think are standard for this car.195/70 tire, going to a 205/70. This is all good.

Backs are 7" on 4 14" wheel 41/2" back space. 235/60 and the back tire rubs on the leaf springs. I like the tire size, but the wheel back space should be 4"
to not rub and still have enough room under the wheel well.

I want to change over to a rallye wheels. Are any ralley wheels from Mopar
sized;

5.5" on 4 14" wheel with 31/2" back space.
7" on 4 14" wheel with a 4" back spacing.

I've been checking out this forum and a lot of talk about 15" wheels. So I don't even know if the 14's with 4" bolt pattern even come in this size for a rallye wheel.

The Summit has 14x6 no 14x5.5 on line.

Any information would help out.

Thanks Chris