Although I'm not an expert, if you or or husband have any building or crafting skills, you can probably build one for less. I don't mist my plants because I can get 79% humidity in my bedroom wiht a humidifier. Granted, only a small area needs the humidity, because I have 18 orchids. So you might want to try to get a humidifier. Do you mist your plants for the humidity, or so they can get their water?