combine leet(cs:s) ragdoll and npc

I need a ragdoll and player model that look like this I know what your thinking but i made this by taking the head of leet from css and putting it on the body of a headless combine from hl2 if possible could you also make it face poseable for the mouth only.
any help is appreciated

why is it that no one ever knows how to hack a head to a body the models are already made