Welcome to BYC, and good luck with your flock, and your hatch!
I'd like to caution you against bringing adult chickens into your flock. It can be very tempting, but you may bring illness in. If you do bring adults in, you'll need to quarantine them for several weeks.
Welcome to BYC! Chickens are addicting... that's a warning by the way! You've definitely got a lot of animals, it's pretty remarkable. Glad to have you