There are lots of stickys on here to read.
1) Hide sould be just big enough for the snake, the bigger the hide the more stress the snake can feel.
2) two identical hide, one @ 82 F, one at 92 F, both on the far ends of the tank (temp. Gradient)
3) Water bowl big enough snake can fit into but not filled up all the way so it overflows when/if she goes in
4) UTH about the size of the snake or the hide I prefer two hides o my hot end, on over the UTH and one beside it allowing for 3 hidees at 3 temps. However I am not 100% sure about the sive of the UTH, I am in the progress of upgrading to a 48 Gal. long and just bought a Medium sized Exo Terra heat wave mat but might upgrade to a large just so i dont have to do it later on.