Well, the following might be considered blasphemous in some circles, but... I can at least speak on the part of N. Burbidgeae, if you can keep it somewhere where the temps float in the mid/low 70's, you shouldn't have a problem. I honestly don't think the whole "night time temperature drop" is all it's cracked up to be. The temp in your house naturally drops at night anyways when the sun goes down.
For example... ever drive in your car on a freezing day in the middle of winter, but the sun is out and you're burning up in your car without having the heater on? Just being in the sun/under light will create heat. Therefore, turning your growlights off/the sun no longer shining through your window naturally makes the temperature drop, regardless of what your thermostat is reading. Why go through all the hassle to trying an manually drop the temp, when it happens naturally throughout the day, even in a climate controlled environment. I don't know if I would keep this plant outside where you live though, I think it would definitely overheat.
---------- Post added at 04:43 PM ---------- Previous post was at 04:42 PM ----------
Oh, and I see no need for you to get a terrarium. I've grown mine on a simple growrack for a couple of years, and it is getting larger and developing pitchers regularly.