Need some schooling on bags for my application

[DaBigKahuna]

I'm a newbie when it comes to these trucks.
I've been static dropping my cars since the late 70s.

Kinda had in the back of my mind that I'd like to bag my truck but I was going to static drop it first. The truck was lowered by the previous owner but it's a hack job at best and has ride issues that need to dealt with. I was literally ready to pull the trigger on a static drop at the CPP show on Saturday when fate stepped in.

I won the grand prize in the raffle which was a Scott's Hot Rods bolt-in IFS airbag set-up.

The Truck: '71 Short-Wide PS/PB 350/700R4. Wheels are 15" rallys. Not sure of the width on them. Running 235/60s on the front and 295/50s on the rear. I'd like to swap out the front tires out for something a little taller.

What I want from the truck:
I'm looking to make it a nice driver. Certainly not a show piece. I don't want to lay frame with it. I don't want to pull the inner fenders nor modify the floor of the bed. I am ok with C-notching it. Not interested in making it hop or dance anything... just simple ride height adjustment. My wife would like to drive the truck but she's never driven lowered cars. I'd like to be able to tell her "Just pull these switches up until these gauges read XXpsi and you're good to go." i.e. maximum ride height and simple enough for her to use.

Questions:
1. What would the rear suspension set up be like? Do I need to go 4-link?
2. What about pluming, tanks, compressor?
3. I noticed that this set up is a "front steer." How does ackerman angle work with this configuration?
4. What else will I need to make all of this work?

I'm sure I'll have a ton of other questions

Thanks

Rick