I think my biggest question is, I know it's going to be pretty near impossible for me to sit on my hands once hatch starts. So is there a good resource that explains what is normal and what isn't, so that if I do intervene, I do so at an appropriate time?
pete55 has posted a Very informative and detailed explanation of the incubation and hatching process, here are 2 that I found quite useful.
https://www.backyardchickens.com/t/577310/a-guide-to-humidity-weighing-and-lockdown
the 2nd one below uses geese eggs but pete55 incubates many kinds of avians, including endangered ones - he states that the actual process by which any bird goes through the physical hatching process is the same whether a chicken or an exotic macaw...
https://www.backyardchickens.com/t/491013/goose-incubation-hatching-guide-completed