I would humbly suggest upgrading your rig, or purchasing an Xbox One.
Then you are playing on the wrong platform. Frustrating as it may be if you want to play a modded version of the game on consoles. Modding the game on their console can only be done using asset that are already in the game, and that is probably going to require a dedicated creation kit. Meaning as far as I have come to understand it. Sony isn't going to be allowing mods that make use of external assets.
