Spend the money to see if he can recover and become a healthy new member of the family. If not yours, then maybe someone else’s. It may cause a financial strain, but you will sleep well at night knowing you did the right thing by this little one. Best of luck.
We get a couple of cats dropped of at our farm per year.They get to join our gang of barn cats,we’ve never turned one away because we believe that everyone deserves a chance to live.