Whipcord housing looks like it's in about the right spot now, good job. The hinges won't keep you from getting approved, I've seen lots of people get approved with them.
As for those switches, to the best of my knowledge it's push button. I don't THINK they are toggle on ROTJ....but I have been wrong many times before. Remember too, that pic you showed might have been a stunt....might have been (see above about been wrong before)
We need to get Rafal in here to clear that up lol.
Everything else looks like you're on the right track. Unfortunately now you're going to have to fill in those holes on the right gaunt, but better to have to do it now rather than after you painted it.
As for that left gaunt, I kinda have to agree with F4R on that...there should be a taper to it when you cut that top gaunt half. It looks to me like you took too much off the back, and not quite enough off the front. Just do the best you can with where you're at, I know it can be tricky. There's no question that this is a difficult costume.
Take your time and check those reference photos twice and cut once. Good luck!