Looks like you've done your homework. As for ambiant temps most people would suggest a radiant heating unit on a thermostat, as lights tend to make keeping humidity up an issue. If you go for a light my personal choice is a red light in a ceramic fixture. The red light isn't noticeable to the snake even at night so you can keep it on to make the ambient temp what you'd like. As far as the rest I'll let someone else answer as I'm still somewhat new at BPs. Congrats and welcome to the BP world