Thanks, folks, much appreciated. Today's news: Having scoured the Inernet, at about midnight I found them in Vermont and have bought them. I expect they'll be here tomorrow or the next day.
Interesting that the shop had not one, but ordered and has a number of 24 shells in that boot. I have been informed by someone not associated with that shop that some of the nationalities who ski at ******** have small feet. I warmly welcome them to Vermont. It's a boon to Vermonters of European ancestry who happen to have small feet.
. . . and for the smartass who relates foot size to ***** size, no, Virginia, there's no concomittance, for which wifey is most grateful.