That IS a nice enclosure!!!

It looks like you put a lot of time and effort into the eclosure (and your snake wants to wedge himself all the way at the top....go figure). Can he get behind the gray backdrop? If so, that's where he will go. It seems like you got a lot of power for that tank....just make sure you don't over do the heat. The repti bulb isn't super important either......when it burns out, a regular flourescent will do the trick. (not trying to tear your nice work apart....just giving you a heads up).

Good luck with your snake Andrew.