i couldnt see getting alot of weed from it, it is definetly possible but this person would have problems with the roots because you want the main root to be long because weed hast root bind. the smell would be overcume by say a carbon scrubber (might be to loud), doing the door open light off thing would be fine, and easy but noticable, wiring system. my analsys he was making shit up as he went along but it could be done if you were that desperate.