Cat Sterilization Fund

I work for a huge government dept on a huge piece of land. We are overrun with cats and kittens. I have tried to trap them and fix them over the years through different organizations but in order to do this, money is required for sterilization, feeding and sometimes testing for feline aids and leukemia. I try to catch them early and have bottle fed and re-homed quite a few. But unfortunately most are too wild already so I must feed them and keep trapping to sterilize and return. The cost of getting them fixed and fed is just getting too much and i myself only have one trap which I m borrowing. I desperately need money to cover costs so anything will help. I keep receipts of costs for proof that it goes to the cats.
Occasionally they need vet assistance and I have paid for it but then have ended up with the cat as it required daily care.
Please find it in your heart to assist these cats. It’s not their fault they’re here.