Vet Bills For Colony Cats

I rescue abused, neglected and deformed animals. Ones with behavioral problems and death row animals. I give hope and life to helpless, critically injured and car accident victims, and those without a mum. I trap dumped, stray, and feral colony cats, then I rehabilitate and rehome them after I have desexed, microchipped and vaccinated them. I have trapped over 80 of these cats in the last few months, and when they are ready to go to their new home I trap more. This seems to be a never-ending cycle. I cannot continue without the support for their huge medical bills. I have a precious mum cat I trapped last week who was hit by a car and have birth with a broken pelvis. She needs her leg amputated which will cost $800. I also have one going in for surgery today which is costing $280. Please help, I have spent almost $8000 since November helping these colony cats.