Don't forget that growing those feathers is going to take a whole lot of protein.  So treat her with the scrambled or boiled egg and yogurt as often as you can while she is recovering.
I would also recommend a course of antibiotics once she has calmed down and are no longer afraid of shock.  Also vitamins, either the polyvisol (without iron) or the vitamin and electrolyte solution in the water.  Just remember in the water, 3 days on, one week off.
Make sure to give those open spots enough time to scab over really good before you put her baby in with her.  You don't want to risk any picking/pecking.
With such severe feather loss she will also be susceptible to the sun.  So make sure she has plenty of shade if you turn her lose before she grows the feathers back.
Laney