I may have gotten the number wrong as I did it from memory. Some of these numbers are simply what Russia has said they have, which may or not be 100% factual to begin with. Anyhow, Covert Cabal still has the best info out there in terms of verifiable numbers.

As for the Czech plan for artillery shells, I just happened to have an article open as I saw your message, it looks like they've funded 500,000 shells so far