Just for reference:
The truck is actually in Sunnyvale, CA, though it will appear on multiple Craiglist listings, and some other (ebay, etc) listings as well. I have traded a couple of emails with seller (who appears to be owner behind the company you see on the left side of the truck).
He says it's in excellent condition, no maintence records. Looks like everything above the word "Antenna" in the listing (including the generator and racks) would be included with the truck/box deal. Interior height reported by him is right at 6 feet.
I have tried to get insurance (commercial vehicle for private use, RV, etc.) through the following companies all day, without success: USAA, Progressive, National General, State Farm (local agent in TX), Geico (local agent in TX) and Mercury. Only bit of advice I received was from National General, who suggested going though a locally owned agency that controls their own underwriting guidelines. I will stew about it overnight, but I will probably email him tomorrow and tell him I am no longer pursuing a purchase.