It's a Class B on a MB/Sprinter body...pretty common stuff.
More can be read here:
Airstream Sprinter Westfalia vs. Mercedes James Cook - Sprinter-Forum
Similar models are very common in the US by RoadTrek, Thor, AirStream, Pleasure-Way, etc.
And...the title of this post makes me ask - "Do you intend to bring a Euro Spec van to the US?"
The "Grey market" for import vehicles is all but gone. If you get one of these, it better be built for US EPA and NTSB standards or it won't even make it through Customs. BMW and Volvo have "buy here, tour Europe - then ship the car home" deals and these are US Spec cars.
Knowledge is power - Best of luck