If you want to put in some legwork here is a tip on finding the tire in that size...
The geographic location of each tire store (Michelin dealer) has access to their own inventory for their given location. Some stores are platinum Michelin dealers (platinum might not be the word but you get the picture) meaning they have access to inventory over and above what normal Michelin dealers have access to (especially for tires that are scarce like these).
Locate a tire store in each state (Google is your friend), call them, and ask them if they can get the tire in that size. They will check "their" inventory they have access to and give you an answer. You might need to do a lot of calling before you come across a place that can get them for you. Then again you might not find a place at all that can get them.
I found out about this because last time (maybe 6mo ago?) when nobody could get that tire size I was able to get them for myself and a couple other guys on the forum. I asked the GM of the Michelin dealer I got the tires from how in the heck he was able to get me the tires and he told me how the process works.
Good luck!
Brian