By now, I've contacted well-known former bicycle salesmen and a variety of bike shops on the UWS of NYC, not to mention scouring the 'Net. No go.

Noglider and mtb_addict,
I am tall (6'), so the height of a Dutch bike is a non-issue, but thanks for the warning.

What mystifies me is that everything seems to be for sale in the U.S. But not these bikes. Nor does there seem to be any kind of "go between" store/purveyor for European bikes, so, CrankyOne, I think you may have a great idea there.
Still, what's to be done right now? I keep thinking that I've missed an obvious clue, but what? The Fryslan is sold across Great Britain, so, I thought it might be available in Canada. Nope. The answer may just be to put this notion aside for now, though I hate to give up so easily...