Bring Zerlot home

Friday Zerlot's stomach turned.  Rushed him to the emergency vet Saturday morning as he was clearly near death.  He had tried to bury himself.  He needed emergency surgery and thankfully the SPCA stepped in and told the vet to go ahead and operate.  
They saved his life. He is nine years old and has only lived here, with us humans and his actual mother, Zany.
The bill is about $3,000.  I am on disability, so my income can not possibly cover this.  Please help if you can to bring my furry baby home. 
Any help would be much appreciated, thank you