Where to buy a expedition vehicle in China?

My wife and I moved to China recently (Guizhou Province, for those asking). I'm teaching English here for the next year, but we want to start traveling around as soon as possible so I can pick up teaching jobs around Asia. We're wondering if there's a good resource for finding expedition vehicles, RVs, campers, etc., in China. I've only found a couple of classifieds sites, but both of them are woefully lacking in anything.

Any help or advice you can provide would be appreciated! Thanks!

Robert & Amanda Kittens