I just purchase a set of rotors from Autozone and bought the spacer mount on eBay. I have a set of HAWK brakes to put on with this setup. Cost without the hawks was $240.00. Next up would be to build a 6P brembo 15" front brake system.
Yes. Leave the anti groan brackets installed. I initially removed mine and the caliper rubbed on the backside of the rotor.
BTW. Those rotors look so much better than the cheapo Centric rotors I bought.