Need Help To Fund My Dogs Surgery

Hi my name is Jeremy Davis and my dogs name is Bean. I am a 12 year army veteran looking for some help to get my dog the surgery he needs. I took him to the vet for fluid build up on his neck and I was told that is is a saliva gland issue either a saliva gland stone or a ruptured saliva gland where the saliva fluids are building up in a pocket in his neck. The vet referred me to BLUE Pearl animal hospital but I can't afford the procedure cause they don't take payments and it needs to be paid at the time of the procedure. They would have to do a CT scan to see what is actually causing the issue and then do the surgery to remove the saliva gland stone or the whole saliva gland. I was told at bare minimum the procedure will cost $3000 to $5000 to have it done or it could cost more depending on how invasive the surgery might be. I was informed if I don't get the procedure done the fluid will keep building up and eventually put enough pressure on his airway and taking his life. I really don't want to put my dog down cause he is a big part of my daughters and my life, he's part of our family. Any and all help is greatly appreciated, thank you so much.