Save yourself some headaches and just start out with a actual snake enclosure (PVC cage). The prices aren't that bad and you will get so much more enjoyment out of the whole experience.
Glass is terrible for many reasons, but especially in a cold room such as that. It also doesn't afford the need for privacy that is so vital for a Ball Python.
If you get a PVC cage with glass or Plexi doors, you still see plenty of your snake, but it will be much easier to keep the heat and humidity contained and the solid sides and top will make your Ball Python feel much more secure.
In such a cold room you will most likely need a Under Tank Heater as well as a Radiant Heat Panel. Using lights as a heat source will result in a non-stop battle of low humidity. You can have the company (or DIY) add LED lights that you can use to "view" the snake, they won't mess with the humidity and won't add heat.
I know the start up cost would be higher. But you could have that snake for many, MANY years and if you start up right, everything will be so much easier and enjoyable.
Of course, we are just giving suggestions. The choice is ultimately yours, and you will still receive help, no matter what you go with in the end.
There is a great write-up in the stickys on how to make a glass tank work. You will definitely need extra heat, in addition of the Under Tank Heat. The extra heat will need to run at night as well, so it can't be the "light" source. You will need a ceramic heat emitter and if you want light, you will need to add that separately. All that will simply kill your humidity. So you would probably need a substrate that helps to hold humidity and mist often. Which usually ends up leaving hard water stains on the glass
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