I mentioned this earlier but I think it got glossed over - if you're trying to make this look as functional as possible, you don't want to have decks going all the way to the inside edge of the deflector dish. Clear that out and dream up some hardware for that area.
Actually, the deflector dish goes ahead of what is there. I left room, and have not yet modeled it. I have modeled the interior to immediately aft of the deflector dish. I suppose I ought to put it in there to clear up this optical misconception.