This couple toured North, South, and Central America in their 1995 B190. 44,000 miles in over 500 days. It's a really interesting site... be sure to read the part about traversing the Darien Gap if nothing else!
Being owners of B190s, we of course were very interested in their trip, so we did
an interview with them that tends toward the mechanical end of it - how did they prep the van, how did they handle oil changes, etc.
Both of these are really interesting reads (however, I actually run B190.com where the interview is, so I'm biased there

). I hope you enjoy them as much as I have.
__________________
1991 Airstream B190 - 7.5L/460 cu in V8.
Jasper remanufactured E4OD.
Stehl Tow Dolly. Tekonsha Prodigy brake controller.
Pioneer head unit, Sirius tuner.
WBCCI #13270 - Washington, DC unit
B190 Owners: The new site
B190 Enthusiasts is dedicated to the 1989-1999 Airstream B190.