Wharton is usually where we start, I've a few tracks saved. It's nothing too overwhelming, but can be deceiving. My avatar pic is a day i sunk the LC out there.
I'll need to head your way and follow you around sometime. Last time I was there we were in my friend's bone-stock Nissan Xterra and we literally had to try to get dirty. I joked that my bones stock Mazda 3 could have wheeled there without much issue. The park staff also seemed to really discourage 4x4's and were adamant that we "Stick to the trails." The latter seems like a no-brainer to me, but apparently people we leaving the trails to find bogs to get stuck in and tearing up the native vegetation.
I'd love an excuse to get up that way and hit up Pick-a-Lili Inn for some wings before I head home. Just need to get the wheel back on my truck...which apparently is a lot to ask these days...