The challenge has been that as the man is not static it is difficult to attach controls for the head and eyes without them being affected by movement of the body. The figure is only fixed by the feet and the left hand. It has movement in the hips for the body to bend over (1). The hips also move in and out (2) as the lever in the right hand is pulled.
I originally envisaged putting the controls in the stomach. However this would be obtrusive and also limit movement.
This project is currently sitting on a shelf, discontinued, but I leave the topics accumulated to date for information on techniques.