Im currently planning the layout for my studio which is approx 16m, 5.5 metres.
I have planned on equal live and control room sizes and was hoping to incoprotate a smaller iso booth for vocals and a machine room for cable management and ideally some storage.
I am currently landing on this rough layout and was wondering does anyone have any ideas?

The advantage I would imagine is a large enough machine room for a modest enough setup so I could store some extra guitars or mics that are not in use. Also this setup might add another layer of drywall and insulation between the live room(drum kits) and my control room position. So the musician would go from the control room through the booth into the live room.
I would imagine that very low frequencies would still "see" the larger layout as it is only drywall and 100/150 mil insulation. Or acoustically would I be better off giving my control room the full 7.7m length.
Also maybe I could make the walls between the control room and the two "booths" thick and turn them into deep absorbers while I am at it.
EDIT: The machine room is the room below the booth. Probably obvious but not as indicated.