In super condition. Love this gear, but have switched to B1s for more travel work.
Used in one studio only. Happy to answer questions, post pics etc.
The D4 is non-air but does have USB in to drive it from Pro Studio.
D4 can be upgrade to air if you like.

Asking $4500 for the whole shabang. (Cost me a whole lot more than that!)
Could ship within US, but a bit heavy and would need to calculate shipping costs (I imagine around $50 or slightly more)