The issue with COWW, is supply...and that supply will not be worth finding. It is a lot of work and time. The good old days are never coming back.
When you read stuff written over twenty years ago, or by the old timers here who got their stash when times were good, keep that in mind.
You can formulate COWW alloy if that is what you want, and that is the value of stuff like Linotype.