Good news! Sounds like you've got the tools for a first class set up. Pics would be a big help to us. This thread will show you how to post them: https://ball-pythons.net/forums/show...-Post-Pictures. Also, what species do you plan to keep in the enclosure?
Without seeing it, I would say that, unless the room is really cold (<65F), I think a 100w Pro Products RHP should be all the heat you need. I would mount it on the warm side and see what it can do. Give it some time. It may take a few days.