I have no first-hand experience with the NPRs. However, I do notice them being used as box vans, and with some of the landscaping/lawn care companies. My observation is you have large cargo potential in a short, maneuverable, fuel economical package.

You may want to investigate Hino, and Mitsubishi Fuso just so you're comparing apples to apples.

Not sure what you think of the Dodge Sprinter vans... they can be had with a high roof and dual rear wheels - and have a small turbodiesel.