Dumped, injured kitten needs surgery!

I work at a dog kennel and on October 23, 2022 someone dumped a kitten at our door while I was on my break. It was obviously injured in some way. I could not afford to get it to a vet. I called and e-mailed several rescues and sanctuaries to get help with no luck. Thankfully, a very kind client of mine paid for a vet visit where I found out she has a fractured hip. She has been on meds twice a day and I have been caring for her the best that I can. I am still searching for a better home situation for her as I have 2 dogs who are not kitten friendly. In the meantime however, she went back to the vet for a check up today and it was discussed that amputation may be the best option for her. She needs her vaccines and then once she is at 5 pounds we will schedule surgery. She is 3.96 pounds as of today. The vet waived her visit fee for me today and I just had to cover meds! Her vaccines will be costly and surgery will be somewhere in the range of $1000. I can not afford either thing on my own so I am asking for help. She is a super sweet girl that deserves a chance to thrive and shouldn't have to suffer because she got dumped at the door of a poor person! I have named her Poochie and I will continue to care for her the best I can, while also still seeking better options for her. Thank you in advance for having a kind heart for creatures and helping me help her!