So, just to update you all and for the sake of keeping track of any progress done and what has to be done:
That's a pre-release tool by Maki:
https://github.com/MaKiPL/ff7_snowboardTool/releases/tag/0.9However, as per Kaldarasha we are missing the skeleton info.
Kaldarasha: "I need also the skeleton info, and a way to modify it. Best would be if the pieces are seen at the skeleton as on kimera. Even if there would be a limit for the tris I could make a stretched recolor of the default model. The final touch would be to edit the animations to adjust the models hight."
Maki: "There's no skeleton info in TMD file, every chunk/object like Clouds right arm is just a model without anything else, there's no animation data inside the .TMD files"
TrueOdin was suggesting: "Something I would do personally for this topic is to start the game in RenderDoc, get to the minigame and catch several frames.
Afterwards analyze the various draw call for each frame and try to find out how the engine is passing the information.
Once it's clear what the engine it's passing, the first step it's to find those models that are being passed and try to reassemble them"
So that's where we stand at with snowboard modding scene so far.