My name is Dan Grec, I drove from Alaska to Argentina in my stock 2000 TJ Wrangler from 2009 - 2011.
I blogged the entire way at http://theroadchoseme.com
where you can read about all my stories and see all my photos.
I love helping other people get out there on the road, especially jeepers, so please feel free to fire any and all questions you have my way
With that in mind, I created WikiOverland, the Encyclopedia of Overland Travel
to answer all the logistical questions you'll have - entering each country, paperwork, camping, bribery, maps, etc. etc. - it's all there, and it's being constantly updated by people on the road right now.
All the best, go for it!