My 2 cents on Air Ride Stuff...
Ive had the full Air Ride kit installed on my '63 Wagon with the "Ride Pro" control setup / 4-bar rear / shockwave front / 3/8" diameter airlines for about 2 years now... My 2 cents on what we (My Dad and I) went through installing it.
1) Not sure if it's a Wagon only deal, but the link bars were too long in there "kit" form. (Meaning it increased the wheelbase of the car, once everything was reassembled & installed you could see a shiny spot on the driveshaft yoke going into the trans where it actually pulled the driveshaft out of the trans more than stock.) May not be a problem on sedans, but on the wagon the increased wheelbase caused the tire to contact the spare tire well on the passenger side when the suspension cycled through it's travel and wouldn't allow the car to move... We shortened the lower bars 1" (can't remember how much on the uppers) welded everything back together and that problem was solved. I told Air Ride about the problem, at the time I had the only kit installed on a wagon, they had sold one other for a wagon, but it wasn't installed yet...
2) Again, just my preference... Unless you have a good reason to get bigger airlines DON'T DO IT !! I regret having 3/8" lines and wish I had smaller 1/4" lines... Which leads me to my next issue...
3) Repeatability of the system isn't all that great. Without getting too technical on things the combination of 3/8" airlines and open / close air solenoids don't do much for consistancy. My kit came with ride height sensors (installed at all four corners) as well as pressure sensors on the solenoid/distrubution block. The system has too much air volume and can't accurately repeat...
In closing... (my disclaimer) this is just my opinion on my experience. I bought the kit because I run big wheels/tires on my car (big for stock suspension car 18x7 front & 20x8.50 rear) and I could never get the car as low as I wanted in the front w/o fear of "zinging" the front fender lips. So I thought Air Ride was the solution. Unfortunately I could air the car up & down 5 times and the front end MAY be at the same level 2 or 3 out of 5... Most of the time it's too low and I have to get out of the car & check ride height before I feel confident driving. I believe cars are meant to be driven, and I've driven mine less and less since it's been "Bagged". I've got a fairground flyer not a freeway flyer, and that's not what I want. At this point I plan on pulling all the Air Ride stuff off my car and heading back to the drawing board so to speak. (I will most likely share the rebuild in a seperate thread when I get going) Heck... If you read all this and still want it, I'll sell you my stuff! It's got less than 300 miles on all of it! (Except the 4-Bar, it stays.)
Please don't slam me on my reply... Nothing against Air Ride they make a very, very nice product. If it's what you want there is nothing wrong with it. I just realized it wasn't what I wanted... Expensive Mistake, Live and Learn ! !
Good Luck with your project!