A:Answer I do not work for Best Buy, or for Logitech, so I cannot speak for regional shipments or availability... However, I have seen variants of both the G910 Spark (asymmetrical wrist rest, and angled keycaps) and Spectrum (the model here, exclusive to Best Buy, with a straightened wrist rest, and more traditional keycaps) available from third party sellers on such sites as Amzn, and even in the UK, often without much markup at all.
With regard to the AZERTY / QWERTY layouts, the Logitech software is capable of remapping (or Windows/Linux have the tools to do so), so that is a possibility. The only awkwardness to note would be that you would have to switch the keycaps yourself... That would normally be fine, as the Romer-G switches make it very simple to remove and replace keycaps, but the WASD triangle for US gamers has been marked slightly differently than the other letters (see the images of the product to note the extra outlines around those keys' letters). That may bother some people, but may not bother others. It wasn't enough to bother a few friends of mine from the RoC, Morocco, and Madagascar, so they have switched the caps, and just have the custom lighting indicate those gaming keys, rather than relying on the outlines around the directional letters. Not ideal, but definitely workable, if you are not too concerned with that discrepancy in appearance.
I hope that this helps! Bonne chance!
