So I am getting ready to attempt to build my own custom terrarium. I am really trying to go all out with this project and do it right. I want to be able to grow highland nepenthes so basically I need a way to provide the temp range for them in the terrarium. I am getting ready to order the glass for it. The dimensions are 26"w x 36"l x 36"h, kind of a weird size i know but I have a fireplace that juts out from the wall and has a large counter-like space on top that has those dimensions and I would like to have a terrarium there. Does anyone have any suggestions on one, how to actually assemble a custom terrarium if I have the glass; two, if there is any sort of temperature controller and humidity controller that is specifically for terrariums; three, if such a thing exists where to get one; and four, if it doesn't exist, ideas of how to provide the temperature changes and humidity necessary to grow highlanders. If possible I would also like to have a stream or waterfall in the terrarium. I have space to build a custom reservoir tank that measures 5"x36"x36" lwh and I would like to use this for either a mist system or a water feature. Maybe even both. Any suggestions are welcome. Thanks guys!