I suggest ditching any lights unless they are completely necessary. You will need a thermostat for the UTH (both of them, since you are getting a smaller one as well). Rheostats work for some people, but IMO they are not worth the money when they sell thermostats like this:
http://www.amazon.com/Hydrofarm-MTPR...1647482&sr=8-1
To answer your question about burning, yes a UTH not regulated by a thermostat can burn your snake, so the sooner you fix that the better.
I suggest getting two small hides. You can make one for now since she is probably stressed out not having any hide other than the one you said she doesn't even use. You can use anything from a tissue box to an empty butter container, just make sure you remove any sharp edges.
Some people need lamps or ceramic heat emitters (CHE) to maintain ambient temp, I can guarantee your tank is getting far too hot with the 150W bulb. You can find a cheap $10 lamp dimmer from home depot, plug it into any bulb you use to lower the intensity. Just be aware that they suck humidity, do you will most likely need to mist or provide a humid hide.
Home Depot also carries and indoor/outdoor thermometer by Acurite, a lot of people use them. Just make sure it's the indoor/outdoor one. The unit goes on the cool side and the probe goes on the hot side, it reads cold/hot side temps and humidity in one unit.
http://www.amazon.com/Chaney-Instrum...1647711&sr=1-1
I also wanted to add that unless your snake is staying in a pitch black room, the lights are not necessary for the day/night cycle, since the sun generally comes in through the windows
http://ball-pythons.net/forums/showt...ius)-Caresheet
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