Chris I hate this for you but the reality is unless you had some sort of vehicle electronic tracking device on both vehicles, you're probably never going to see your MH or Vette again. Within hours of being stolen, your Vette was in a container on a container ship eventually headed for South America. As for the MH, you might see it again if Border Patrol stops it for a drug inspection on it's way back into the US from Mexico. But since it'll be chock full of drugs, the DEA will keep your MH so you'll still be out of luck.
Hope this doesn't turn you off traveling around our great country.
Happy camping!!! See y'all down the road!!!:)