if you didn't want to drop that kind of coin, you could just snap on some stock 10.8 rotors and and fresh lines and call it done. if you wanted to upgrade to the 11.75's all you need is the caliper bracket and the rotors, which are stock.
except for the caliper brackets all of that is available at a local parts store or online for considerably less.
that will be plenty of brakes for that setup unless you're autox or road racing.