The cage size is fine but I would ditch the "nest box" section for actual hides. BP's like small confined spaces where they can feel secure. A 1 size fits all isn't going to work.
I would suggest these made by reptile basics. Replace with the correct size as needed:
Thanks for the info. What place did you get the heater for the top of the cage at? As far as the nest box area I can make little box's for her to hide in I was thinking tho she like a area that is 100% blacked out.