I hope that you have no more egg breaks. The problem with leaving mine in the coop is that the nest box is off the ground, the coop is too so they'd have a couple foot fall if they (the new chicks) fell from the nest box and also another couple feet when they went into the run since the coop is higher off the ground. Our plan is to build a mini coop in the run for a broody and babies. I'm just too worried about them falling.
Yup, I agree a wired bottom cage works the best. I have been having a broody in a cage non stop for the past month. As soon as one stops, another starts up. I have 2 more cages ready to use, so far they've been good and have only gone broody one at a time.
Glad all is well with Kiwi, love that name too!
How is she today? That's a lot of eggs, sounds like she is determined!
The top picture look more rooish to me, think I see pointed saddle feathers and more red in the comb. I hope that the lower picture is a girl, but not sure about bantams if they grow faster since that is a pretty red comb for 12 weeks.

Great and welcome! It's always exciting getting new chicks!! I've had mine since Feb 2012 and am really enjoying it!! Can't wait to see your pics!