I don't understand what you have written regarding the Cragars?. The stud pattern can't be 4x100 AND 4x114.3, it can only be one or the other. But as the centre bore of the Cragar is too big, you would only be able to safely fit it with an appropriate spacer (not sure if that is the correct term here?) to take up the 7.9mm difference. In my understanding (which could well be wrong) the protrusion on the hub assembly over which the centre bore fits snugly is what is supporting most of the weight, the wheel nuts or bolts simply secure the wheel against the hub. So, again, as far as i am aware, it is essential that the centre bore fits properly. There is also quite a big difference in the offset.

Because of how important wheel fitment and the contact patches between your car and the road is, i'd advise against getting these wheels. Better to get something that fits properly.