Just wanted to say congrats on your new pet! When are you getting it? Have you already been looking at some that you like?
I'm not experienced enough to answer "whats best" questions, I'm learning a lot about caring for my first ball python... For the humidity and heat, I covered half the screen lid with saran wrap- on the outside- and used tape to keep it in place, but make sure to only use tape on the outside! Otherwise your little bud might get stuck to it and possibly be seriously injured.
You picked a great online community here, everyone is very helpful and knowledgeable and friendly; and more importantly you can tell they genuinely care about snakes.