Re: Broodies - I don't try to break my broodies - I just let them be; twice a day or so, I haul them off hte nest to eat, drink and poop. The only reason I gave Sophia babies was because she was refusing food and water and her comb was limp and flopped over, she looked miserable.
Once I gave her babies she was back to eating and her comb, while not red yet is perked upright. And is definitely happy and contented. She sure is a good mama

I might let her raise chicks again next year if she goes broody again, just because she has been the least troublemaker our of all the broodies, and hasn't tried to eat me, and has learnt to not fight the others.
Re: Friendly chicks - Once they get out and about and know what treats are, don't worry they will become extremely friendly hahaha. Too friendly - right you little monsters - they are in my office again looking at me, I am waiting for the day they can fly up onto my desk - won't be long now! Yee gads they are cute
Re: Roosters - they do require specific facilities if you want to keep mums and babies and other birds separated. I have issues with Marty being over bred - I can't put an apron on her it's too hot, I am hoping she goes broody and sits in her nest box for a few weeks, regrows her feathers.
You might have 3 more pullets there to keep him happier - and if you're getting a bigger coop and run, then you can go get a few more hens. And now that you have seen other breeds you can choose what you want. Legbar, Polish, Bielefelder, Barred Rock, so many to choose from!