What Wheel Backspacing for an F-Body 8.25 in an A-Body?

BBP wheels are easier to find. Just not in a 15” rim. And on that note, you’re probably not going to find a used 15x8 with more than 4.5” of backspace.
A 7" rim should work, too. I'm looking for a 235 tire at least, which is what I'm running right now. I was thinking that the crown vic cop wheels looked like they had a bunch of backspacing, and they should be easy enough to find, and should be the right 5x4.5 bolt pattern