So I test drove this beast yesterday: https://miami.craigslist.org/brw/cto/5702997042.html
Only $4.8k, 66k miles, and 6'4'' of standing room. Sadly its transmission broke down on the test drive just as I was imagining our future together. (better than a week later, at least!)
@MSD, I agree this ebay one is pricey (relative to the craigslist one i just linked to anyway).
Now I think I will go with a relatively new (~2004-~2010) econoline with <100k miles and also find a used bubble top or a donor for a DIY pop-top.