I SM'd Noises this past summer. If your rehearsal hall is large enough, then you can just tape out one set giving yourself plenty of room in front and in back. Then have the director (and yourself and your team) flop which side they sit on for act 1 and act 2. Act three takes place on the act 1 set, and the audience never really sees the backstage part. I hope that works for you. It's by far the easiest way to do rehearsals. that way you don't have to tape out multiple sets. Good luck with Noises. It's a beast of a show, but alot of fun.