I looked a bit. A new compressor & 2 rear shock/struts, $650. I didn't dig deep but the front shocks might be pneumatic as well.
Like others have said, I'd look hard at a Z71, spring part numbers etc. & try to find a common ground, or a lift kit company tech person, & look for an alternative to air. No maker including GM is gonna have a bunch of other special parts just to accommodate the optional air ride when another version is also offered. I highly suspect standard parts will bolt up.
The turning off the light in the dash is above my pay grade other than simply pulling the fuse for that system.
