[Req] Twelve Sky 2 Original Character Skeletal Files (.max / .fbx)

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Hi everyone,
I am currently working on a custom animation pipeline for Twelve Sky 2. Does anyone happen to have the original rigged 3D character models (base rig)?
I tried reverse-engineering and extracting the compiled .SOBJECT and .MOTION files, but the process completely breaks the rest pose and bone axes, causing severe mesh distortion when retargeting new animations.
I'm looking for the raw, uncompiled source files (preferably .max or .fbx) before they were processed by the game engine. Any leads or shared archives would be hugely appreciated!