You don't need the config either O2. You just need the Texture Swap Utility. With that tool you only load the (encrypted!) model, and change the texture path from e.g. "Sebnamstuff\armpatch.pac" to "cj525's_addon_name\newarmpatch.pac", that's all. then you only need to copy the changed model into your addon folder and remember to change the "model name" entrance in the config ;-)