So underground fort it will be.
As far as the priests go, I like that idea of having them as sort of a "pacifistic militia" that wanders around other workers... though I'm not sure that would actually do anything for anybody. Not gonna bother with baptisms, I'm going for dwarven fantasy priests, not human medieval real priests.
That being said, problem is, they're gonna rush every kobold they encounter if they're on patrol... and I don't want them to be my robe-wearing police. As hilarious as that sounds. I might still throw them into a militia or two so I can dictate their clothing, though.
I'm not gonna confine booze-making to priests, but I might do something like "All priests have farming and brewing enabled and there are stills and a farm near the temple" Maybe I'll somehow simulate them blessing weapons for the military, too... without actually forging them. Can you decorate weapons?
I think their primary role will be that they're the healers of my fortress. And since I plan to have a militia of wrestlers, they'll be getting some of their practice in. It's a pity "Therapist" isn't a profession for dwarves, it would be nice to have dwarves whose sole purpose is to try to improve the mood of other dwarves. I could even have them do prison visits.
I'll probably want a hierarchy, too. The "Bishop" would be the head doctor, someone will have to be the Book Keeper (which position would be best for that?), the Monks are the ones who do the farming and brewing and also the nursing, the Priests are the other doctors. Maybe? Or am I over-complicating things?
Incidentally, is there anything useful you can do with raising children that doesn't involve psychologically torturing them until they're broken and numb to everything? And I don't mean "feeding them to things", I want to do something productive with them as they grow up and have them *survive*