Hey there !
First of all, thanks for all the mods, I can't imagine how much time you've put into this. I just installed every mod you suggested in the Steam guide with Tonberry 1.6 enhanced (Seed reborn, Project Eden, Tripod, Horizonpack and Button controller).
Got a small problem though, some lines (from Steam) disappeared, the ones that were added to the Steam version : the "Do you wanna quit ? Yes - No" one, the commands that appear in a table just before the title screen, ... I just see the frames ! The Squaresoft logo is also all buggy. Eveything else in the ingame menus look fine at the moment.
I'm playing on the English version, but it was the French version at first ... Not sure it is related or not. Changed the version through the Steam properties before installing the mods.
Anyway, thanks for everything !
EDIT : Just tried putting the game back to French and add the French Language Pack in Seed Reborn. Still got the exact same issues (lines missing, squaresoft logo buggy).