here it is….. This is the Nightmare star that myself, , created using Celestia’s overhaul v2 model as a base.
 
So this is model is not cut and dry. Every time you load the nightmare star model you will have to load the particle mane  
and tail and attach it to her head and pelvis. The particle mane and tail will require dota 2 particles which i will offer a link for.
 
Loading the nightmare star model is the standard of dropping the model and material folder into the usermod folder.
 
Getting the dota 2 materials to work use this link and start at 4:38 and go from there that should allow your SFM to recognize the particles. www.youtube.com/watch?v=z-cwKo…. This process is to be done with the files in the Dota 2 link not the ones in the video
 
The 3 particles that you need to load to create the mane and tail are as follows  
Nightmare_Star_HairTop  
Nightmare_Star_Hair_Back  
Nightmare_Tail_Pelvis
 
Model Files are here: Nightmare Star V1
 
Patrice Mane and Tail here::Nightmare Star Particle Mane and Tail
 
Dota 2 files here: drive.google.com/file/d/0Bwki7…  
(Note this file is quite large at 3.8Gs zipped and over 7 Gigs un zipped)
 
NOTE…. will be hosting a stream on 8/6/2016 at 6pm pst. We will be doing a tutorial for anyone who has trouble getting this model to work