Just thought about some things since you said you use this sometimes as a daily driver...
-Need to make sure they are putting a water separator (aka water trap) in the system to keep the valves from getting frozen. Also should have them put a half a bottle of air brake anti-freeze in the tank so you can avoid valve freezing issues during the winter months.
-Also want to have them put in-line check valves so that if you lose an airline/bag etc. you will maintain you're current ride height. Valves require back pressure to stay closed, if you lose one line you would lose ALL air in you're system causing you're entire car to lay out.
-Are they wiring you to have FBSS? (Front,Back,Side to Side) I see eight valves (4 fills, 4 dumps) so you will have that capability.What type of switch box?
As far as coil overs -- you're bags are going to replace them. Usually they will fab up some shock brackets for some "normal shocks" to damper the bounciness.
Sorry for all the advice, I see air ride systems and I get excited.
Drag it
http://www.the370z.com/members/dropp...ging-frame.jpg