DCMA is a good twilight tour, especially if you want to stay in the biz after retirement. Easy segue to flying as a GFR or contractor.
I work out at Cecil (when I'm home). A lot of my coworkers live in Oakleaf and like it. Some live as far away as St. Augustine. I live near NAS Jax . The commute isn't too bad with several ways into the Cecil area (103rd St, Normandy Blvd, I-10, and Brannan Field Rd). You are pretty much against the traffic coming and going, with the exception of the Flight Star 500! Be careful.
Julington Creek/ St. John's area: I imagine you'll be splitting your time btwn Cecil and St. Augustine Airport. (St. Aug is where Northrop is located) This will put you smack dab in the middle and the school system is one of the highest rated in the country.
He did mention F-5s, I think. Those are/we're in St A.
I will be working primarily at the DCMA facility at Cecil. It is under DCMA St Augustine. My understanding is there are also projects at Jax international as well. Some type of Super T or T6 project. Not sure yet. Been concentrating on AWF for the last few and next several weeks.