I have to do the body as well...Probably wont be as challenging as the head.
1. Blocking out the shape
2. Extruding the arm. I decided to bring the head model and I then realised that my orthographs were completely messed up, fortunately you still get the full view in the side and front views.
3. Extruding the legs.
5. Modeling some of the suit detail (still needs more work)