I don't know anything about Womas but my male BRB lives in a 71q tub.

He is going on 4 years old and pretty good size. I don't know if its normal for a BRB but he loves to hide.
Got him a nice Boaphile 18" high, placed a large shelf and perch and he never used it.
Moved some things around and put him in my 32q rack for a while and he seemed very happy. He is/was to big for the 32q but now in the 71q

He is my only BRB right now so that's all I can help you with.

BRBs needs high humidity and cooler temps so take that into account as well.

Hope that helps a bit.