summit, jegs, any mustang book, run you between 75-150 probably. you can get either bolt on of weld, id recommend weld on b/c bolt ons will stretch the holes and become lose and cause probs... if you do weld make sure the car is sitting as close to "normal" stance as it can be so you dont weld them on when the frame is already twisted b/c it will stay that way.... dont know the other stuff you asked..