Full-timer taking Airstream into Mexico - Help!

with $300,000, $400,000 and half million dollar diesel pushers crossing year after year, an airstream is going to be given hardly a glance.
the food thing is a political game. The US will not allow some products from Mexico (and Canada) into the US, in return Mexico stops products from the US. Technically I think the embargo is for commercial shipments but sometimes they get a bit overzealous. Not a big deal unless you feel the need to import 200# of beef to last the winter.