Definitely yes. Though I myself hadn't the time to research full workflow yet, will to that soon and if there still won't be a tutorial, i might create one,
To extract the assets look here :
https://docs.larian.game/Pak_Extractor_GuideYou can create the same path in your game folder like you have in the extracted PAKs to override the default textures. (I rename that override folder to disable it again)
How to get i copied model associated with the new texture i havent fully researched. You have to deal with visuals visual sets and maybe material editor, though no definate answer. Hope to find out soon. ...