I think it should work alright. The good think about Bossk is that you can extend the limbs to make him taller since his flightsuit is a normal sized, "human" flightsuit.
Also, it's better that you're using the PotF2 Bossk because the Saga Bossk has awkwardly positioned ankles. PotF2 has a more neutral stance.
I have not done this, but I think it's a good idea and I might have to try it now
. Keep us informed with how yours comes out!