how may pieces for that?

27 pieces for the head
11 pieces per ear
Ill post an ear in a sec.

Thorny, how about post somewhere blueprints of it? :D

I'd buy one.

been trying to do one myself but the goal was to take a casting of it for a resin mold. Glad it can work. I am having a problem getting the right dimensions and measurements.

One thing that helped me was to make a small "measuring cube" in the editor. One that is exactly 1 cm (or 1 in whichever is easier) and use it to make rulers and visual scale references to the real world, as well as a rough but size accurate head proxy geometry. Once things have proper scale in editor, just import it 1:1 into your printer and it should be good. You can test it on just the cube to make sure.