Prayers and support guaranteed! That sounds extremely scary stuff, and I think you're really brave to tackle so many things at once: neurosurgery, the sense of "loss of control" you get in hospital, the risk of some idiot who hasn't read the notes sending you a male nurse ... You have my admiration!
I'm sure it will go well. Jus keep telling yourself that your body has done the hard bit and kept the cancer away (for which "yeay!") and this is just about making it all heal cleanly.
Do you have a good internet connection you can take into hospital? Or will you actually be in and out so quickly that you're sleepy in there and won't care?
There will certainly be prayers for you - and your surgeon and care team - from here