What i'm trying to do here is replace one item by another, in this case replacing all variants of platemail armors with scalemail ones.
So far I was able to extract and find the textures in the textures.pak (obviously) and simply rename the scale armors so that the game reads them as plates.

The textures appeared in game (a mess without the meshes tho, but still). Now I tried to do the same with meshes (from Shared.pak) and I just end up with my character's body invisible (only the skin parts, i'm playing an elf). Only the scale armor shows up...

Obviously i'm a complete beginner here, just a couple of experiences in modding with skyrim but only the basics...

Any help is appreciated !