Never been in a Jeep in Moab but have been there 8 times and ridden a few of the trails you speak of on a bike. Fins'n'things is sand hell; porcupine probably okay in stock vehicle but there are tons of bikes there (especially on weekends). Poison spider has a few gnarly sections but fantastic views - I agree that coming down by gemini bridges (end of gold bar rim) is a nice outing. Have fun! I was supposed to be there in May but had a BAD crash skiing...


1991 JDM SWB Pajero TD - Sold....
1997 Dodge Ram 2500 Cummins 4x4