Help Custer Get the Medical Care He Needs

Custer is my daughter’s feral cat that she met last year moving into her apartment.

She started feeding him and they have been together every day since. He comes every day but has been having health issues. Breathing and not eating. She took him to a free clinic but could not treat him. She finally got him in a cage and to a vet but would not treat him without a $500 blood test to evaluate his condition. If any other treatment needed, whew! Just asking for any help to keep Custer and my girl together! She is heartbroken