I made these textures and portraits for my personal use with Shem's Playable Dopak mod and figured I might as well share them here. Contains a basic version and three progressive Dark Side variations. I used the AI-upscaled tgas from red11by's Complete Character Overhaul as the base files for my edits.

Included head texture files:

N_dopakH01.tga - Default neutral / light side face texture.
N_dopakH01D1.tga - Neutral face with Sith eyes
N_dopakH01D2.tga - Sith eyes and some facial corruption
N_dopakH01D3.tga - Pale skin, significant Dark Side corruption

And the corresponding portrait files:

PO_pDopak.tga
PO_pDopakD1.tga
PO_pDopakD2.tga
PO_pDopakD3.tga

If all you want is a beardier NPC Dopak, just drop N_DopakH01.tga to your override and you're done. :p

If, however, you want to use these textures for your Exile, you'll need to install Shem's mod first. Once that's done, drop those of my files you want to use into your override folder and overwrite when prompted.

By default, Shem's mod uses only one Dark Side variant, with N_DopakH01D1.tga being the head texture and PO_pDopakD1.tga the portrait. If you want more pronounced Dark Side corruption and are satisfied with having just the one DS face, the easiest way is to choose the versions you want and just change their file names in the override folder accordingly.

If you want the head to have two Dark Side variations, like most of the other heads in the game, you'll need to open heads.2da in a 2DA editor, find the line beginning with N_DopakH, and change "headtexe", "headtexve" and "headtexvve" to the name of the file you want for your first DS variation. then change "headtexvvve" to the one you want for your super extra evil variant.

For the portrait, open portraits.2da find the line beginning with PO_pDopak and change "baseresrefe" "baseresrefve" "baseresrefvve" to the name of your first DS portrait, and "baseresrefvvve" to the name of your second DS portrait.