Will these wheels work?

The 7 1/4 is narrower than an 8 3/4

Yes, but the BBP 7.25 and 8.25 are the same. All the dimensions are in the 8 3/4 width list that's stickied in the drivetrain forum.

72blu, my Cragars are 4-1/4 backspacing but forgot to mention I have air shocks on so it is sitting higher in the picture.

Interesting. I'll have to check my math, because those would not fit on a lowered car.