Howdy All,
First A question. Is the gas tank along the drivers side?¿ With all our talk about clearance the one thing that helps is knowledge of where those low points are and how to maneuver the vehicle to get them past an obsticle. One thing I didn't see that I would do is put rocker panel protection on. There are some that fit almost flush with the rocker panel so you don't notice it that much. It's relativly cheap insurance especially with an unlifted vehicle.
Any moisture makes "slick rock"- slick rock
Trivia time; One story about how "slick rock" got it's name is that the people that came in using horses were having trouble with the horses sliding on the sandstone because of the metal horseshoes.