LD50the2nd

I just released my first mod, called Leaders & Legends of the new Commonwealth, and I could use a little guidance from the community, specifically as it pertains to Face Ripper and NPCs that exist within my mod. I can not, for the life of me, figure out how to import a looksmenu preset (Or, for that matter, even a Player appearance) onto an NPC that exists within my created mod. I can create an override .esp file, but I do not want multiple .esp files for my mod. Is there a step I am missing or something else I can do to import the appearance of a character from a save file into my mod? Thanks in advance for any advice! - LD50