Will it fit? L60-15 Polyglas GT on 15x8 steel 4" BS

Hey FABO,

I have read through the threads and have come to the conclusion that a 275 tire will fit on 4 1/8" bs 15x8 IF the rear is high enough. My question is I want to go with the Wheel Vintiques 15x8 series steel wheel in a 4" BS and a Polyglas GT L60-15 in the rear (28" tall) essentially the same dimensions as a 275/60r15 radial. The car has higher lift springs but in the stock location. What are your thoughts on the outside lip fitment here? Will it rub?

Car is a '71 Demon with an 8.75" standard location A-body rear with a SBP for reference.
View attachment 1715906135

I love your car! I want to do this same thing on my 71 Demon. Please let me know what you decide and how it fits. I'd also love to know what size fronts(tire and wheel) you go with and see pics.

Thanks!