My "new" '74 Duster- or why I need a project like a hole in the head

Why not machine the rotor hubs down to fit the rims? Assuming I am understanding that there isn't enough meat in the rims to machine them out to fit the rotors.

Do the B-Body spindles use the smaller inner bearing? Or do they use the later large inner bearings? Not familiar with the B-Body spindles and how they are different than the A-Body spindles. I assume they use the same geometry, though.