Good on humidity.
Hot side floor temp is better at 88F than 91F.
BCI's like 86-88F or so. 90F is pushing it for them and 91F probably means she won't want to be there.
My hot side, depending one where under the RHP and Heat tape I measure (I use both on the hot side of my 6X2 Boaphile), ranges from about 86-89F, with an average of about 88F.
I bet you cannot wait!
Make sure to post pictures and then let him be for a while!
Good luck!