Help save my 8 month old rescue, Athena

Recently my family and I went to spay my 8 month old lab puppy- after being told on the fifth day we could take the cone off safely we did so, and woke up that morning to see she had eviscerated herself. We rushed her to an animal hospital and she is in critical care due to a rare phenomenon called post-surgical evisceration with auto-cannibalism. After losing 80% of her small intestine, she had to be given a second surgery in order to remove the feet of intestines from her stomach. The cost is nearly at $15k, but we want to give her every single chance we can before letting her go. She’s a fighter and she’s been fighting the past 24 hours, please help her fight.