I’m glad to see you were able to find a vet to treat him. You originally said there are no local vets.
I also struggle with euthanasia. My hubs travels more than half the year which leaves me in charge of ending suffering. I would strongly advise you make a plan. Call vet clinics to see if someone there will euthanize a chicken. My vet will do it for me even though they do not treat chickens. I have had a local chicken owner come in an emergency and gave her some money. I have even paid for a necropsy just to have the chicken humanely euthanized. As a chicken owner it is my responsibility to have a plan if I am unable to do it. I suggest you find one too.
I also struggle with euthanasia. My hubs travels more than half the year which leaves me in charge of ending suffering. I would strongly advise you make a plan. Call vet clinics to see if someone there will euthanize a chicken. My vet will do it for me even though they do not treat chickens. I have had a local chicken owner come in an emergency and gave her some money. I have even paid for a necropsy just to have the chicken humanely euthanized. As a chicken owner it is my responsibility to have a plan if I am unable to do it. I suggest you find one too.