C30 Full Air suspension Kits with the Ridetech Coolride Front, RQ shocks, HD 4-link Rear, C30 Panhard Kit, RQ Rear shocks, and an Analog 4 way Compressor kit will start off at 3800.00
http://www.ridetech.com/store/trucks...hash=V328.V263
Let me know your year range or what you are looking for and I would be happy to put a kit together.