Yeah, if your truck is really totally stock you'll want to remove the following:
1) Step rails (paper thin - tend to get bent and damage other things when they do)
2) mud flaps (get caught on rocks and get in the way)
3) wheel center caps (tend to fall off at the weirdest times offroad and get lost)
It is as easy or hard as you want to make it out there... we've had 2WD trucks come along and have fun - but there are also trails that none of our rigs could possibly do... they've got a good trail marking/rating system to help you figure out which is which
Plenty of Barnwell pictures here Oh, it is located in Gilmer, TX - about 1/2 hour from Tyler. Just google for TMTC and Barnwell and you'll find it.