I did basically the same for the front. I used Mach I calipers, though, just because they were cheaper. I love my brakes. The car stops on a dime.
BTW, I did the Eradispeed +1 for the rear instead of the cobra rear because it was cheaper too.
I used the frpp M-2300k brake kit, along with OE 04' cobra wheels. had to roll the rear fenders. North race cars makes brackets to bring the axles in. moser makes fox length axles with sn-95 hubs. I did the kit the without these and had lots of issues. with those 2 parts world of diff. Well worth the money and the best mod i ever did to the car, period. Braking is amazing!!! looks incredible as well.