Big bolt pattern hubs.

I think the Scarebird install req'd drilling substitute rotors to a 4.0 pattern so that will be a redo also. I suspect a new pair of rotors would be req'd. How many different bolt patterns will fit in one rotor ?
Scarebird is a good option to get disc brakes where drum brakes were, but nothing more. Wheel options do not change. Might not be the best choice for everyone in the long run.

yep... you are right I didn't think about the fact that they use chevy rotors too.