I can simplify the task for you (but I won’t be updating the mod for beta Necropolis anyway). I have a model where I restored:
1) Ruby in the hilt (made it myself)
2) inscriptions on the cloak (took from lod; because of them, I had to rework the lower part of the cloak)
3) edges on the sides (took from lod; I doubt they were originally one piece with the sword)
All that remains is: the original face and crown.
Thank you, please share the textures of the sword and cloak; I've already implemented the models for the edges and ruby. It will be more difficult with the crown than with the face :D
Regarding the crown, Vampire Princes have something similar, only the ruby isn't round.