Ok bog alert... Strarted work on the spine it's basically a re-sculpt, but the the good news is that I only need to make up one part to join the neck and spine it looks like it will be the same point as the sholder motors are mounted, I'm thinking of doing a custom part that will alow for the movement of the motors.....The best guess on the size/lenght is 51cm 20 inches anyone that knows it for sure please let me know....