What size wheel will fit under my 64 Fury

Hope to be picking up my 1st Plymouth (1964 Fury) next week.     This will be a retro street car for fun not a race car, but it will be able to hold its own on the street. I want to install mag wheels (Torque Thrust most likely) and don't know how wide a wheel I can use and what setback, offset, etc., will fit in the rear wheelwell. The front won't be that hard. I plan on using 15" wheels.

In photos I've seen of this car and others there appears to be quite a bit of space in the wheelwell but I don't want to purchase too large a wheel and then find out they won't fit. I've read that I can move the springs inbd but really don't want to do that unless I have to.

Anyone been through this before who can comment. Any info is appreciated.

Thanks,

Butch