Do it right the first time...the MM plates are the only ones to buy. It was one of the first purchases on both of my Mustangs, and worth every penny. They offer the most adjustability of any c/c plate, and the quality as always with MM is top notch. From what I've learned, DON'T skimp out on suspension parts. The quality of the suspension is directly related to the feel of driving the car. If the car handles and drives like shit, and chews through tires, it's not going to be fun to drive. I was stupid with my old car and cheaped out on suspension and it always rode like shit and pissed me off. Do yourself a favor and get some MM plates as well as a quality set of shocks and struts to go with those springs. Bilstein HD's, Tokico D-Specs, or Koni Yellow SA's will all do the trick!
Good luck buddy!