Hit the showroom floor and see if there's another MB vehicle - a GL, an ML, something SUVish, and figure out if something sold in our region (note the Vito is not sold in our region) something will work for you and for her.
Alternatively, take a trip. See the world. Rent a Vito, take a ruler to to it and to other visors not sold in Arizona..... find something that works and get a part from Chris Case (SprinterUK).
Here's another thought:
Get out of the business.
Start one that caters to making FrankenSprinters from MB parts around the world.
Find out what parts fit on NAFTA Sprinters. Become the mod-your-Sprinter king, the
Matthew Lesko of FrankenSprinters!
You could even have cheesy late night commercials - produced by people like the producers of this commercial:
[youtube]gYTjiIm4h_Q[/youtube]
Yell at the camera. Wave your arms in exaggerated motions. Ask and answer your own questions at the camera, "You want a mirror on your Visor? I have a mirror from a W123 that fits your T1N perfectly. Your wife will love you. Then wink at the camera.
Offer to eat a bug and then scarf down a chocolate covered ant or something....
-Jon