Twilight Princess Link Models have separate parts

[MegaPokéSonicX]

I was trying to rip Link's model from Twilight Princess but I noticed that the face is a separate model form the body and I don't know how I'm supposed to attach it. 


some of the parts like the face, head, and extra hands are different models that are all separate from the body and have to be reattached manually but I'm not sure how I'm supposed to attach them.

[Koopa512]

use belmd (https://github.com/nnn1590/blemd nnn1590 branch becuase it's better) with blender 2.79 to get the model if you want vertex weights
and after that, parent the face and head rigs to the head bone and set the offset to the length of the head bone