I move my hens into a bucket once they want to set. Arter a couple days of the bucket, I move the whole nest, bucket and all, into a 4'x4'x4' dome pen covered with 2x4 wire. Once the hen comes off the nest, I toss the remaining eggs, and let the hen and chicks out together with the free rangers, while I observe. I keep her penned when I'm gone. The 2x4 wire lets the chicks come and go as they please, and the hen stays put. I'll let her out when I'm around, but mine seem to want to roost high and leave the chicks on the ground. Last week I had a hen somehow get seven 20 day old chicks 10' in a tree and they got down before I left for work. I make sure to feed her and put them up before I eat now.
Even though I lose a few chicks, it is way easier than brooding them myself. I raise Asils and they will protect a clutch. They don't lay a lot, but will set 12 eggs and raise 7-10, and do it 3 times a year. It takes a "real" rooster to breed them. You don't have to though. Just give take the eggs til they set. Flush her off the nest,and put a bucket where she was setting with a little straw and whatever eggs you want her to set. She'll go back to it within an hour if she's really broody. I know Asils aren't the easiest to find, but any broody should do the same thing. I like how protective the Asils are. Bring the chicks to eat from my hand, but there won't be another bird within 20'.
Good Luck. Blaine