Support a Rescued Dog's Emergency Care

I have fostered dogs for years thru rescue, who pays for funding for the dogs I foster. My son works for a emergency response company who called him out this morning to pick up what they thought was a dead dog in a railroad yard because of the odor,when my son got there he found the dog was still alive and the odor was from the infection caused by an embedded harness in his neck and spine which was full of maggots and the bone in his spine is exposed from where the latch of the harness had grown into his skin, so knowing I’m a dog lover, my son called me and I took him to a 24 hr emergency vet in Humble and this boy is skin and bones, dehydrated and needs a blood transfusion, which I am paying for since he doesn’t have a rescue. I am asking for help to pay this sweet boys vet bill