'64 Dart Cragar S/S Size & Back-spacing

Thanks for the input. I've got a few different size suggestions. If I'm understanding correctly (and correct me if I'm wrong) 14's or 15's will both work, 6" max on the front and 7" max on the back and the back-spacing should be 3-3/8" to 3-5/8" although there weren't many options offered?