You can add in all the items and such necessary to create a working faction file yourself manually, i'm not sure on how to do this but i'd reccomend using a faction file as a base as making one from scratch is hard. Faction files are written in plain text so editting them is easy assuming you have knowledge on how to write lua in plain text, such as knowing how to comment out lines or add new ones.

I have done so. The issue is though is that Viod wanderers refuses to load it. or even attempt to load them. The console doesn't show the game attempting to load it

And I have added voidwanderers into the faction loads in the faction files.ini