I will be trying to attend and quite possibly may have a couple other rigs along with me if it shakes out right.
Make sure you check some of the trails and do not follow their guidelines explicitly. I walked a bit down a couple trails and passed even though they looked good at the start. It is one of those places that once on a trail...you may not be able to turn around since they are tighter than most. They have some bypasses but not as plentiful as Badlands. Ask around and people there can likely offer advice.
I am sure you can wheel a stock-ish rig all day and have fun, but some of the "moderate" stuff we did was a bit more than i would call moderate.
There is a big-ass hill climb that you can watch some people attempt. Couple hundred feet and multiple routes up and down.
Also if someone wants to flex and test there is a V notch I have seen done by a bunch of jeeps