It could get a little hecktic if you have 200 dwarfs and 20 different gods to make temples for. I agree with the personal chapel, and the thought of a temple too, though. Possibly, you could create holidays for worship, so many people seem to forget holiday literally is holy day, and is a religious thing. Pick a time in the year, kinda like setting up schedules for military, and all the dwarfs will have it off to worship, and enjoy themselves. Though I always though dwarfs were just naturally industrial, unlike humans, they require little to no breaks, and would rather work until they die. I agree with the idea of a noble thats a priest, and I think he should also be elected, it just makes sense to me, that the people decide who leads them religiously, or be chosen by either the monarch, or some Godly force, like the God they worship. A prophet kinda, but less important and impacting other then the normal useless noble. Basically I don't think the play should decide who he/she is. It would be like you can make public zoos, statue gardens, and now temples. I could see him making less mandates, but plenty of demands, all for the temple and none for himself. I think it should give them happy thoughts, but if you over do it unhappy thoughts, no one likes being forced to church every second day, when they have things they have to do to keep alive. And to simplify it, I think we could assume dwarven religion is one with multiple gods, all coexisting, so we don't have to make twenty temples, yes dwarf A follows this God, and dwarf B follows another one, but they are still of the same religious belief.