That sounds great. I was thinking of doing something similar thanks for the inspiration hope all goes well with them!! Good luck
Good for you! Feel free to use this thread as a guide!
If I was gonna give anyone 3 of my best tips, I would say-
1) Free range is key. When they free range, they start to rely on themselves somewhat, and will go forage for food. I would get free range area available as soon as they have most of there feather. Even when they have half their feathers, put them outside so you can watch them when the weather is nice, and back in at night.
2) Lots of things to climb on in the brooder. I find that my ladies climb on everything! Especially if they get food. Preferably, if you could raise the feeder off the ground, so they have to climb to get to it, that would be perfect. Then, when you feed them each morning and night, they have to work to get to it.
3) Love them! Mine love me because I spent so much time with them. They are also very social birds, so it wasn't hard to get them friendly. They will follow me around, ANYWHERE! I think they just want food, but they will also gladly sit on my lap and lay in the sun with me. This is great, because I can walk up to them, wiggle my fingers like I do when I feed them, and call, "chick chick chick chick, chickens!" and they come running. I then run around the yard and they follow me at my heels. I use that call every time I feed them, so they know to come to it.
Then, they can run around the yard with you, and you can exercise them. They are FAST runners! You will be surprised! I also plan on harness training for the occasional walk, that will help with exercise as well.
I can't wait to see how it goes with yours! I started a thread a bit ago, for people to share their pet Cornish, I know I saw a few people on here who had them. Anyway, feel free to post your progress there, no one responded so the head kinda went stale, but feel free to bring it back to life!