start reading here: How to Set Up a Glass Enclosure. it's a wonderful write-up that will help you understand what a glass enclosure needs to be successful.
and no such thing as too much as far as the snake is concerned, but just know you'll have to clean all of it when it gets dirty.
your forethought to ensuring your snake's enclosure is perfect before it arrives is definitely commendable and something we don't see that often from new keepers.
read over the sticky i linked above to ensure your humidity requirements for glass enclosures are met; it should make dialing everything in easier.
don't be
just know you won't see your BP much; they hide practically all the time. i went with a glass enclosure for my first snake, and i bought a T8/PVC cage when my first BP got big enough. i know down the road i'll be moving away from glass and will probably only use my glass set-up for quarantine.