Hey Aaron...
I have a Project Mu 'one-off' set-up. We did the 4-wheel forged slim kit on my G. This endeavor was rather pricey. My advice? I would probably not recommend it. You will need to buy a full big brake kit, then replace perfectly good parts with not only new brackets, but new hats for the front rotors to make them compatible with your G. And those replacement parts are not cheap, especially after you've already spent thousands on the kit itself. Just my $.02. Good luck...