The Capo
godless Heathen
Sorry guys, I have been very very sick for the past few days and haven't had time to work on this. I'll get on it tomorrow though. 

The same method used for leaderheads. Cut the parts you don't want off, export the nif, and attach it to the Oromo's skeleton.
Did you try to flip the normals?
normal lipping should work or when you go to nifskope give the properties to both sides. man, you are rusty.
Finally, I am not exactly sure what you mean about the chin.
And to those of you who celebrate it, Merry Christmas!
Also don't forget to fix the pink eye issue