Kira dying would be okay. She could have been Marked in the marking along with Crabbe and Goyle if you want her to be full DE now?
I'll keep Romilda in mind for casualties and let you know tomorrow via e-mail if we need her. Otherwise, we can assume she got out safely or stayed and fought and you can drop her if you'd like.
Alfie says Ellie can deal with it! He probably doesn't do much fighting other than guarding that door, either.