Boa heating help!

[pythonphilic]

In the near future I plan on adopting a Boa so Im building a DIY 6' enclosure made out of plywood (hopefully). I have the blueprints and the whole nine yards so I'm okay with building, I'm just completely dumbfounded on what heating element I'm supposed to use. I've read on many different threads and forums that heat pads should not be used. thoughts? I've read threads suggesting that you place the heating pad directly in the enclosure and I don't know how I feel about that.. I feel like that's an accident waiting to happen. But anyways, I like the idea of RHP, but they're almost out of my budget range (I'm in college) so I was going to opt out with a ceramic heat bulb, what are the pros and cons of each? And what wattage would I need for either? I have one last question and that is how do you install any of the heating elements in the enclosure? Do I need to do anything special while I'm building the enclosure? I'm totally lost with all of that haha! Thanks for your help!