I don't know carries Shrock products other than ordering directly from Shrockworks. I'm sure you could give Shrockworks a call and find out if they have any distributors in the area.
Seen a yellow X w/ a TJM bumper out there in Odenton? That would be Steve. He recently lifted it and got some larger tires too.
If you're interested in getting your X out on the trail, send me an email. The Greater DC Xterra Club is always looking for more folks.
Brent