Planning a Closet-Enclosure for my Retic - Any tips on setup would be amazing!

So I think it's time to empty out the closet and turn it into a new enclosure for my baby!
The dimensions of the closet are 54.5" x 24.5" x 88" - Would that be too small for a 12'~ yearling?
The biggest reason I would like to do this is because I feel he needs to climb around, and sitting in his Boamaster cage is boring him.


Things I would LOVE to add to the enclosure:
-small waterfall into a larger place for him to soak/get a drink
-large logs to climb around on
-something he can hide in
-waterproofed walls/floor (for obvious reasons.. this mischievous dude LOVES to tip over his water..)
-1/4" polycarb or acrylic door entry with locking
-possibly a removable tray for the bottom


Any input from YOU guys/gals would be amazing and so helpful.

First and foremost. Make it at least high humidity proof. Last think you want to do is mold and tear about your house. Next thing would be to make it easy to clean. Other wise it may be very trying on you later.


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