The lightsabers will be wired to a setting switch they shut off automatically after 2 minutes. I am still working on the columns,
On a side note, I have been working on the tray ceiling idea in which I will Scratch Build a Star Destroyer portion so you are looking up in the tray and see part of the ship coming- just an idea im kicking around here is an image to get a better idea.
I also been brainstorming of possibly scratch building Palpatine landing pad for docking bay for symetry of the middle to replace the original macquarrie Luke figures under the Main Screen. I always love that version and seeing I will be building docking bay for the falcon I will have parts already cast
scale will be an issue to include a vader tie as well.
To answer your question about the screen, I am not really an audiophile I am opting for a nice lcd or plasma not a drop down the screen size will be 52"
As far as the Noahs room under the falcon there will be a secret door behind a bookcase and another secret passage through the bookcase in the Main Library which is the entrance to the media room.