Once a size has been chosen, the world is your oyster. We could (probably) spend the rest of our day with this configurator and not repeat a build once. Each truck can be had in different styles ranging from windowed van to cargo hauler to cutaway truck, while buyers can also choose from a number of wheelbases and roof heights.
Add to that an options sheet that's almost Porsche-like in length, and you get a van that can be completely customized to the needs of your business. Check out all three configurators at the following links: 1500, 2500 and 3500.