Yeah, get the van if you want to for a house, but to run around servicing computers some kind of hatchback economy car is the way to go. Jetta, Geo, Hundai, Honda, whatever. Even my wifes ford focus wouldn't be so bad a choice. I was sure Tyler or Oatnet would mention the really good choice for a economical truck, the VW van . I used to haul a cord of firewood everyday in a 72 VW van back in the last big recession in 82. Other minivans can be just as nice as the VW's to work out of, and use for a motel room as needed. I even had an aerostar van that was a 4x4, great for the beaches at the lake, and camping up nasty forest roads. But all the minivans are a real PITA to wrench on. I got in the habit of just dumping em when they broke something more than a CV axle or brakes.
Now I like my Subaru Forester a lot. It can carry 8 foot lumber or pipe inside, I can just sleep in it, and bigger stuff can carry on the roof. It can haul a small trailer if I need to, and is the easiest car to wrench on I ever owned, including VW vans and bugs. It gets 25 mpg, at 70 mph with the ac on ,and has all wheel drive. Not quite a truck, but better than most cars, and can haul anything up to 1000 pounds. No 4x8 plywood though, with the right straps I could carry a sheet on the roof, but not at highway speed. A cordless saw would be a better solution, and make the cuts in the parking lot.
If you don't actually carry around computers and printers you could work out of an ICE scooter with some good saddlebags. Here in my town, one of the other electric bike riders does carry computers and printers around town in a trailer behind his electric bike. Most of his buisness is within a 10 mile circle of his house.
THE LIPO RULES. NEVER ABOVE 4.3V NEVER BELOW 2.7V DON'T PUNCTURE
Ideal charging /discharging range for Lipo, 3.65v minimum 4.1v maximum
See battery technology section, FAQ thread at the top of the page for lipo noob info.