Help pay for Vader’s surgery stay at the vet

Asking for some help paying for our Big Boy’s vet bill.  Originally we planned to have a total ear canal ablation for Vader because he has had a chronically infected ear since we rescued him a little over a year ago and probably his whole life.  This has caused him countless sleepless nights, roaming the house shaking his head, falling over, etc., because his ear infection was so bad.  We have treated his ear 2 times daily with natural as well as aggressive treatments, but the nasty smell/ gunk/ inflammation has never been reduced.  We have been to multiple vets, and tried all of their remedies, but found none to help.  finally we came to the conclusion that he NEEDS to have a total ear canal ablation, removing all the insides of his ear,  leaving no areas for infection.  We expected this surgery to be around 3000, but because of his massive size it was 8000. Then he ran into some complications during his recovery, and has been at the hospital for 5 days now... hopefully he’ll be able to come home today! But now the bill is at 12,000 and could use whatever kind of help is possible.