I got my 67 Dart mini tubbed many years ago by Auto Rust Technicians in Rhode Island. The springs were moved inboard at the same time. If you don’t mind some advice, I’ll share a trick. On the fenderwell side, my wheel quarter panel had been rolled to eliminate that lip, at the tip of your tape measure. At the 14” side, there is a lip there, two metal seams welded together that you can bend flush you get the max tire size. Tire clearance was tight. I forget the tire size but they fit perfectly and never rubbed.