The pictures are deceiving. Actually most of the pictures are taken on Trail-22 which is level blue; your stock vehicle wouldn't make it out of there without damaged rockers and you'll bust up your catalytic converters without a skid plate there.
With the 4xG Belly Guard (or equivalent skid fro SA when he puts it in production) at a minimum, you'd be able to hang with us on the Green level trails. BUT there will be areas that you're going to bang around some components. I would highly recommend putting a 2" spacer lift on first, and at least the $40 upgraded suspension skid from Jeep.
For peace of mind... get a belly guard. With that and a set of rock sliders, you're seriously set for anything we'll go through there.