I found a U.S. based internet retailer with 1.5L and 2L Evernew water carriers in stock.
The 1.5L is $17.80 and the 2L is $21.80 (shipping included).
I ordered and received the 2L... so the source is legit.
My plans are to use this as the dirty-water bag for my Sawyer filter. Given that I only plan to use this for general backpacking (not a thru hike), should I spend the money to get a 2nd one as a spare or do you think Evernew will start shipping more to the U.S. before I have to buy another one?