Help save Lacy’s life

Lacy was a feral kitten when she was rescued from the streets of South Los Angeles. I socialized her and she is a loving and sweet cat  she is only a year and a half old. She wasn’t feeling well and I brought her to the vet. She has lost a little over 2 pounds in less than three months, is jaundiced and has a very high liver value on her blood work. I have already accumulated $1750 in vet bills and fear the diagnosis will be FIP, or Feline Infectious Peritonitis. Thankfully there is a treatment, but the cost is another $2000 to $3000. I have already gone through my entire savings. Lacy deserves to be able to beat this. She is my baby and I love her so much. My heart is breaking. Please help. Any amount is helpful. Thank you