Found one almost exactly matching what I wanted 300 miles away!
All in thanks to this thread:
https://g29.bimmerpost.com/forums/sh....php?t=1864169
with this site linked:
https://kilter.com/search?brand=BMW&...+M40i+Roadster
Nationwide searching from the BMW web site was tough. If you didn't know where a place was, you'd never be able to find a car.
Still in transit, but it's in the US. Only a couple of differences - removes the wireless charging and adds the 50 year emblems (which are growing on me). Hopefully, within the month it'll be a fly-n-drive.