Veterinary questions? Ask a Vet for Answers ASAP
If you are unable to get assistance, given how unwell he sounds to be, you also have the option of surrendering him to your nearest vet. This would mean they would take him on. If his condition is treatable, they would potentially treat and re-home him. If it is not (or it would be very costly to treat), they would euthanasia him, to prevent suffering.
At the end of the day, no vet wants to see a cat suffer.
I would advise you call around and explain you have a cat who is extremely unwell and may be suffering; they should be able to assist you.