Cant wait to see it..
I was going for the 6 servo eyelid mod as well, but probably have to put that on hold until i can have a look at this,
will probably get to crowded with all this servos, we need even smaller servos :)
problem is that i also need to cram 2 x 8mp rasbbery pi cameras in there as well for my Nvidia jetson tx2 project ;)
your backtopskull is at 20% her now and your lower backskull with the moved servo was don yesterday ;)