i'd go with the fusion coils... or use a model similar to a inadimate object from forge in halo 3 (if you have the game try looking at smaller objects) helmet and chest plate could cause over heating.
why not make the case look like a chest plate in a peice of rock.... square or rectangle then have part of his chest sticking out one side and the back on the other... maybe you can put a place to put your helmet on top!
why not make the case look like a chest plate in a peice of rock.... square or rectangle then have part of his chest sticking out one side and the back on the other... maybe you can put a place to put your helmet on top!