Thanks for the tip! I'll get some of those, look good. I was thinking it might be worth switching to compression fittings, but will take your expertise on it - i'm new to air suspensions.
The diagram may look complicated, but it's really set up so that if the air solenoids for dump / fill stop working or leak for whatever reason, I just flick off each corner so it's in 'manual fill mode'.
I was looking at some of the pre-made wireless controllers and just didnt like the dinky internals, figured I could do better with some good solenoids, digital pressure gauges inside the manifold, blah blah.
Went a bit overboard on the solar (1.6 KW) - but it's nice to be able to power the AC directly from the charge controller.
Build is almost done, I'm hitting the road soon to live full time in the camper once I get the flatbed on. - I'll be out your way (you're in UT right?) in a few months, we should sync up and compare notes!