Plyable Ithorian...do you mean along with changing clothing? If so, I've asked for something similar, and it's a massive undertaking (the word, 'unfeasible', was used).
Also, I think maybe the Ithorian head may get in the way. For example, a normal attack and defend animation involves the lightsaber being held in front, then brought overhead and behind the back, before returning. The arms would go through the head.
It is better to have it and not need it than to need it and not have it.