That’s strange, the Vibrandoneon uses Binci reeds? I wonder if they just don’t make them anymore since the Vibrandoneon has been discontinued through Victoria. I went to Dave’s Accordion in Atwater CA they replaced one for me and no sound difference in tone or volume. Maybe your accordion repair guy you know in NY can make one for you or replace the tounge portion using the same reed block.
Good luck Binyomin.
Melodica-Me