usc49erfan

well after installing the new, well not really new, 98 axle in my question is about the final brake purchases. i put stock gt calipers and rotors on the rear, so i now have disk all around and the front are the stock brakes and the 5 lug conversion. the question is what master cylinder do i need, the 93 cobra or something else. also do i need the bigger booster or will the stock one work. i know i need an adj. pro. valve too, but was wondering if there was anything else i might need?
thanks