1971 Demon 17" Help

I just purchased a 71 Demon project and I am at the wheels and tires time. I love the look of this Demon's 17" wheels, I have looked up on here the controversial 17" will fit and will not fit back and forth. Does anyone know what wheels these are? Also if anyone else on here know whats a perfect 17" wheel and tire combo with backspacing that would be greatly appreciated