I have the OLED Displays using the new services from Mats, which is great!.  I used MeshMixer to create a new piece which is a combination of the Chappie model chin and Gael's InMoov Camera Holder for the InMoov eye.  It is a bit rough but a good first fitting. The biggest issue is that the camera is sideways so that the screw holes to attach a cap or eyeball to the front were accessible through the back of the chin piece.  Once I have figured out how to rotate the camera view in OpenCV I will be even happier!