

Here’s an Italian company that sells food grade filter paper: https://www.polsinelli.it/en/filter-paper-disc-ø-200-100-pieces-P3276.htm
Before you say “it’s not the same”, you have to understand that you’re moving to an entirely different non-Chemex product anyway, so you’re going to have to experiment with what products work for you as well.
Lots of websites seem to have M2’s cone burrs, and matching ring burrs in stock.
And also the paddle wheel.
You don’t have to buy it directly from Baratza.