Welcome Russell! There are quite a few friendlies in NC. You should check the Olde North State Cruisers (TLCA subchapter) for contact:
NC- Olde North State Cruisers - IH8MUD.com
They are an active bunch and can get you on the trails or give you local advice. MTBCoach is a member and drives a SunFusion Yellow with uber mods.
The FJ is a great platform for expedition type wheeling, as long as you don't plan on trying to sleep "inside" the vehicle

We've been on several road trips and my wife and I have had a blast doing it.