I too own a 72 that rides on bags. The truck is not my daily driver, but only because of the 9mpg it gets. I have an isuzu trooper for mileage. However, I would't hesitate to drive my truck cross-country if I had to. With the bags the ride is great and its a plus to have the adjustability. Like rigo said, make sure and do it right the first time. I learned the first install that teflon tape is your friend (No Leaks!).
As for kits, Air Rde technologies has a great setup, and is what I'm running. Also, I'm using SMC Valves, a Viair compressor, and Parker brass fittings. Lay it low and keep on railing
