Years ago, when I couldn't find anything else, I started converting Old Glory 15's,
Boers & Boxer Rebellion mounted US for 'Non-uniformed' units
and Boxer Rebellion Japanese cavalry for Federales (wearing a sort of Samur Kepi)
and Russo-Japanese 'Japanese' infantry for Federale inf.
Couldn't find any French 75's for the artillery.
So I converted German W.W.1 77's (because no one seemed to be stocking actual W.W.1 French 75's)
And then I found some W.W.2 French artillery 'game pieces' from some board game up for sale online... Somewhere.
They weren't sculpted as well, but looked more like French 75's.
Started all this YEARS ago, and just resumed efforts to finish them up. Which I suppose is why I noticed this post ?
Good Luck to you,
MW