Hi TAKUUU. Welcome to Geekhack.
I lurked a long time myself. I have yet to see a KAT set that didn't look awesome, though I don't really follow group buys.
I couldn't point you to them by name offhand, but there are definitely at least a few French users on here. If you're looking for caps, if you post in the Keyboard Keycaps section, I imagine one of them will spot it and might have some ideas for you. I hope so anyway. I know if they're anything like me, I don't even really go into that section.