Heidts front brake upgrade

I've been looking to upgrade the brakes on the Thundersnake, but the project budget is a little low, so I was trying to avoid the $650 Wilwood MII kit. I didn't feel the Granada rotor/GM Caliper setup would be enough, so I kept looking around. I found that Hiedt's offers the 11" rotor/GM caliper kit, but they ALSO offer that kit with billet 4 piston calipers. The price? $469 . I ordered up the setup today, I'll let everyone know how it works out. It only comes in 5 lug, so I'm going to redrill the rotors to 4 lug so I can use my existing Draglites.