Some people have already been doing that, though majority of them are asking for a fee given the time and effort it takes to port them is quite large. Since it's them providing a service in some sense. But there have been some people that have released their works in progress's, though not necessarily complete.
It's just an NPC, it can't be used as a character the way how it is since I had to remove some existing 3D Geometry to make room for the custom geometry data. Well maybe as a morph but other than that.. yeah.
I don't really get that... Would you be able to do it on other races? i.e Blood Elves.