She is beautiful and you have been getting a LOT of great advice from great people. But I want to suggest that you unplug your UTH
immediately before your BP gets burnt. She will be fine without a UTH until you can get something to regulate it and check the temperatures of. I tested my Zoomed 10-20 gallon UTH once and let it go unregulated; it went up to 138*F on the glass before I decided to shut it of. Imagine your BP laying on that. :(
And please get the acu-rite asap and get rid of the analog stuff. You wont regret the money you spend on her, trust me. (I spent $300 on Oz's enclosure to ensure it is 100% safe and comfortable for him.)
The difference between a rheostat and thermostat is a LOT. A rheostat only dims the power of your UTH (or whatever you plug it into) and it is very unreliable. If your room temperature flucuates 1 degree, so does your UTH. You have to constantly tweak it and it is a huge hassle walking into your room and finding your UTH is 5* over what it was a half hour ago. :(
A thermostat tests the temperature of the UTH and turns it on/of (or dims the power) accordingly. You set it to 95*, and it will stay at 95* no matter what your room temperatures are. I suggest any of the higher priced thermostats (helix, herpstat, ranco, + johnsons) but the reptitemp 500r will work fine if you keep an eye on it. You cannot set the reptitemp to a certain temperature like the higher end thermostats. The reptitemp 500r is like a step above a rheostat. I use it temporarily at the moment until I order a different thermostat and it WORKS but I would rather not worry about the temps constantly. To me it is worth spending the extra $100 for peace of mind.
About believing the two identical hide stuff, you better believe it. I had two almost identical hides, the rock cave ones you buy from pet stores. Except one was dark brown and the other was tan. My BP ALWAYS preferred the darker one which was on the cool side. Now They are literally identical and he thermoregulates from one end to the other as he should.
You could cut holes in bowls or whatever works for you, just make sure they are both identical.
I would also buy more plants and make sure most of the inside is full. You could also take another step by covering 3 sides with black foam board. I find it looks REALLY good.
Here is a picture of Ozzy's setup if you are interested. This is when I had the two different color hides. He is around 250-300 grams.
http://img.photobucket.com/albums/v5...enclosure1.png
Here's my version of the 'acu-rite'
http://img.photobucket.com/albums/v5...enclosure5.png
Hope this helps.