Help Stanislav save Finn - surgery needed

Finn is my tabby kitten of thirteen years. On 20 September we rushed to the Saint Petersburg Emergency Vet Clinic with a tumor on the spleen. The vet recommends a hospital stay and surgery, and the estimate came to $600. They have stabilized Finn, but the treatment can't wait beyond December. Finn is more than a pet - Finn walks my kids to the bus stop every morning. I have already put $110 toward the bills and asked for a payment plan. Whatever I can't raise, I'll repay to anyone who needs it back. If more is raised than needed, the surplus goes to the Saint Petersburg Emergency Vet Clinic's charity fund for other animals. Where the $600 goes: • Emergency surgery: $360 • Hospitalization (4 nights): $160 • Medication and follow-up visits: $80 Please ask me anything in the questions section. I'll answer honestly and quickly. - Stanislav