Long time lurker and posted here and there over the past couple years

Hey guys idk if this will be seen before my interview tomorrow, but I just wanted to get everyone's input before I go.
A little background first,
I started a little less than 2 years ago at a NOC and have gotten tons of experience, I also have traveled part time with them to set up various wired and wireless networks from restaurants to 200 AP's at a hotel.
Almost 1 year ago I started WGU, I have since earned 5 Certs and am about 1 year away from finishing.
I felt at my current position (Since they don't promote from within and very few if any raises are given out) that I have learned about all I can and will not be progressing and did not want to become stagnant, so I put my resume out there and submitted to all the major job sites. Out of the blue today I received a call from the VP of IT company in my city and they saw my resume on Monster and wanted to talk to me about a position.
I called him back and we set up an interview for tomorrow at 5pm. It is for a network engineer position traveling 50ish% and setting up major hotels and resorts, and the rest will be telecommute supporting local businesses and their networks and servers.
So I am both excited and nervous and just wanted to put this out there for you all. I did research on the company and have prepared several questions to ask in the interview tomorrow.
Any insight, tips, or advice would be appreciated.