Dodge's are real popular in the Anchorage/Mat-Su area. I'm sure there is also a dealership in Kenai or Soldatna.
The vast majority of the trucks used on the North Slope, and along the pipeline are Diesel Fords. They work fine in the cold, but they are also plugged in overnight, and when it's cold, ie less then -30F, you simply idle the vehicles.
If you're planning on hauling boats or other heavy loads, a diesel is the only way to go.
I'm still driving a toy truck, a bit cramped even with the extra cab, but they run quite well, and for a gas truck, can't complain with the 17-20 mpg.