I haven't tried to swap brakes from a 10 BOP to a 12 Corporate. It makes sense that you could swap everything from the backing plate out BUT it would depend on the hub diameters.
Another thing is that this could be a 12 bolt that was shortened to fit a Camaro. They are much more common than the original Camaro 12 bolt. If it is shortened then it just doesn't have the same value as the original Camaro 12. It's still just as good for what you want it for.