Complete suspension help....

Ok within the next 3 weeks I plan on ditching the 4x4 look and lower my stang. I am having a real hard time finding some of the things I want at relatively good prices though. I am also wondering if the setup seems worth the money. Let me know if there are better brands or better prices.

Steeda Comp Springs: $289
Metco Upper and Lower Control Arms: $399 lower, $349 upper
Strange 10-way Adjustable Shocks and Struts: $65 shocks, $112 struts
Steeda 4 Bolts CC Plates: $250
Steeda Bump Steer: $100
Steeda X2 Ball Joint: $100

Anything missing???? Also since I am going to have the whole rear end down should I just rebuild it while I am at it?? If yes then what are some good parts??? I don't want a locker though the car is still street driven. Thanks.