okay, personally i dont think that adding at least one more light would do much harm as far as stealth is considered, i mean i have two lights going and my room is real small i dont even have a walk in closet and its only a portion of the entire closet like maybe a third, and as of keeping out in the open, its as simple as shutting a door. (not trying to be mean) um get some pvc plastic sheets, black on one side white on the other, its a great reflector of light(white side) and it also helps prevent light from leaking out, and for any of the small little areas that you missed as jorge says, DUCT TAPE! and also i have a lock on my little closet so the curious george who lives here cant look in while im gone, they can listen to my fans but nothing more. also if thats too far for you even so, assuming that there is a door on the initial room itself, i would go buy some simple window weather stripping and place it around the frame of the door and place a blanket on the bottom crack just a simple light leak prevention. its sold at walmart for like five bucks.