No problem. You can work with glass tanks, but they're a little tricky to maintain the ideal setup. There are some stickys in the forums about certain mods you can do to an aquarium to make it work well for a bp. Things like crafting a plexiglass lid with air holes that will help to hold in the humidity... Adding black contact or construction paper to the back and sides of the tank will help the snake feel more secure. If you're using a larger aquarium for a smaller snake, add a lot of hides so the snake has several options for a secure hiding spot.

With a glass tank, you can also use an under tank heater, but be sure to have it hooked to a thermostat or rheostat. Without regulating the heater, it can also get too hot and can cause burns. You can mist the tank to increase humidity, but putting in a larger water bowl and moving it partially over the heat source will also help.

I still say that you'd be better to get rid of the dial gauges and get something digital. You can find an Accu-Rite Weather Station at Walmart for around $12 that will measure cool side temps, humidity and has a probe to measure hot side temps.

As for light cycles, they are totally unnecessary for a ball python. Your bp will spend 90% of its time inside its hides, so they really won't even be exposed to the light. If you have your enclosure in a room with windows, the natural light that gets into the tub is more than sufficient...

I forgot to address the stuck shed issue in my earlier post. There are also stickys around on how to handle a bad shed. Basically, put them in a tupperware container of some kind with lukewarm water deep enough to come about halfway up the sides of your snake. You can put a washcloth in there and he might take care of it himself. If not, after 15 minutes or so, take the snake out and let him slither through a towel and he should be able to work the stuck shed off of himself.