I'd take one, too. I believe Tom has one similar to this in his collection, perhaps he can enlighten us on performance, etc.
I only a couple of WK & Thermador dishwashers growing up, the oldest was a built-in at an estate sale that had the offset "H" style wash arm. I inquired about it as it was likely going to be pulled immediately upon sale of the house, but never heard anything, of course.