Air out back?

[69gmcc10]

I have a friend that has offered to sell me a set of f9000 bags for about half price and in the spirit of No Limit's green Shop Truck that I love so much, I am seriously considering buying them and removing of my coil springs out back on my 69 GMC. Rob used them on the back of that truck and said that the ride is softer, and since they wont take away from the load capacity of the truck, not that this truck will ever see much of a load, I thought it might be a good idea and/or a little fun and different.

The truck is currently on stock springs and 2" blocks out back. I was going to cut 1/2 a coil from a new set of moog 6102's and probably swap to a 1.5" lowering block out back for scrub purposes so a spring change will be needed to level it back out regardless. I don't currently have a plan to add air up front in future. Never having dabbled in the world of Air springs, please indulge me while I am thinking out loud and help me figure our the feasibility of this. I would love help and ideas on what kind of air management systems I would be considering (compressor size, tank size, and valves) and other various logistical issues I might not be thinking of.

Thanks