I built this in by spare time using mosty parts from 2015 Pohatu. A Lewa Uniter mask from a friend. A few black CCBS pieces from finn buildable star wars ccbs figure and a lot of spare parts.
Note: Some of the plates have gold on the from a old gold color test from a Knock-Off pieces but i think the half Olive/Gold came out fine.
Bottom image was a last minute fixed image since lewa master has yellow on the upper arms.
Edit: the collar is much more firm (dont have those technic angle connector with number 3 on them) But its far more rigid than balls and can they can be lifted to be adjusted.