http://cgi.ebay.com/ebaymotors/Ford-E-S ... vi-content
I'm not going to be able to afford a factory SMB before I want to start doing my travel this spring, so I've been scouring craigslist and eBay for 4x4 vans that I can do some basic interior conversion on. Then I found this sucker listed, with a current bid of just $1k. (Other similar vans from EMI are going for around $15k with more mileage, so I bet the reserve on this is at least $20k.)
I'm a big geek so I'd sort of want to keep the extending 35-foot mast in the back as well as the 19-inch equipment rack that the genny lives in, but check out the A/C unit and duct work in the back! This thing was basically a mobile datacenter.
It's too bad it's probably going to end up out of my price range, because I would totally leave that mast in and get the best 3G signal on the mountain. I'd be a bit worried about the weight of all that steel plate top, though, and of course a penthouse would be right out. But it tickles my dorksense.