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.
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what is the color on the car . I like it.