To be honest I'd expect most alloys to require some form of clearancing to fit a bus - it just seems to be par for the course really. I've seen them on another bus on here (guy in the US, not sure who it was though) and they looked good - I think when you start getting to wheels that size there's not much between 16" and 17". They're a fortune to buy though, so it's just a pipe dream for now...........
I like your alloys, but then I'm a sucker for white wheels generally - I had these on my old Polo: (It was a long time ago though........ )