The camper you want might not exist, campers made in the US tend cater to what most US buyers want, a cheap price. (y'know capitalism, giving the consumer what they want).
If cost isn't an issue import a camper from Australia or buy one from people who are starting to import them (y'know capitalism, seeing a opportunity and investing in that opportunity) check out http://conqueror4x4usa.com/ or maybe a Cricket or Mantis camper from Taxa (US manufacturer).
My camper is a LivinLite 21BHS (pre-thor) I paid double what a cheap OSB camper would cost but never having to worry about a water leak making the floor soft is worth it.
As for capitalism, my comment was more meant along the lines of capitalism always travels towards monopolies, and the Thor/Forest River pair has a Duopoly, running something like 80% of the market in campers in North America.
Now, I'm not saying that I wouldn't accept a giant sack full of dollars from a competitor if the number was right,