Good idea....also a '06 or older 2wd Dodge 2500 may meet your needs since the older Cummins are easy to maintain, get good mileage and don't require low sulfur fuel.If it were me, i'd want a mid 90's toyota T100 2wd. But i can get away with 2wd in the winters out here most of the time. They're dependable as hell, not very expensive, they're a toyota and they'll last forever, and you'll get great mileage as opposed to the 4wd. But i'm a tight wad. :0)
Good luck,
J