It is wonderful to see her so happy and enjoying life and I am truly amazed a chicken can recover from such an injury. To think I suggested putting her to sleep - seems your chicken-mummy instincts were right to keep fighting for her, a huge well done .
So happy for you that you are managing the tube feeds. I think Faith is a beautiful name for a brave little lady too. I really hope she continues to improve.
I am thinking of you and wishing you good luck with the tube feeding, I have never done it either and know it will be terrifying the first time but there's really never going to be a more important time to learn.
That is a horrific injury. I know you love her very much but honestly I would consider euthanasia is probably the kindest option here. You need to consider the pain she is likely to be in during the healing period which would be justifiable if she was going to make a complete recovery but...