Rear 4 Link Set Up?

[renegade8720]

Hi, I am thinking of doing a rear 4 link set up or aftermarket trailing arm kit on my 68 stepside and wondered which kit, where to buy, pros and cons, air bag or coil over ? I think the four link set ups look awsome and since my frame is being fully detailed for show, I want the best looking set up avaliable. I have been looking at kpcomponents.com for a 4 link and also Air Ride Technologies Airbar for the trailing arm type. Does anyone have pics of these installed?

Any advice is greatly appreciated,

Renegade