Get a tent period. If you are even in a rental property you should use a tent even. No need in cutting holes and doing any mods to the property. Then if worse comes to worse you didnt "distroy" their property to make a buck. Even if it was personal smoke they are gonna look at it as if you moved if and made their property into a grow house they wont be happy. If its a tent in the side of the room I bet they wouldnt even know what it was unless they wanted some.