I work at FM, but live up in Carroll County. I'm new to jeepin too. I bought an older jeep to fix up, and do a little trail riding. Seems MD doesn't have too many, so lately I've been running through new construction sites and slinging mud up on the vehicle, without tearing up their work (finding the places where they just dump the dirt).
So, I may not be able to help too much, but figured I would give you a shout and let you know there are a lot of jeeps up farther north. If you run into a need, send me a PM and I'll see if there's something I can do for you. NoVa folks are also around, and based on your profile, it would be easier for folks there to help you than way up near PA where I am.