The thread is for ideas of a radical nature if someone can figure out the how, the idea is there for them to use, if not it's just a few lines in a thread with some equally difficult notions to realise.
Surely matching up a physical model with existing footage is just as hard for a adding a head in motion as it is for adding a CGI creature or a physical model of vehicle like a Walker to footage in motion.
At least the mask is as artificial as the model already is.
We are talking a lot of hard work but for such a pay off if someone is willing and dedicated enough to pull it off.