Why not just interact with them while mama is raising them? Then you can let her raise them the normal 6 weeks to 2 months that is natural.
This is what I do from hatch. I hang out in the coop real close to the broody and her chicks. Never moving real fast. Hand feed the momma so the chicks learn that I am not a threat. I have done this with two batches and all chicks are comfortable with me around. Now I don't handle them for pets, only for inspections, which they tolerate.
I love those ideas; however, would it still work with my situation? My little white silkie will be hatching Pekin/Rouen mix ducks. If I let her raise them for 6 weeks to 2 months, she will be walking UNDER THEM - LOL.