Help Henrik get IVDD surgery

Hi, I’m Christina, Henrik’s owner. On Saturday 1/7 upon getting home Henrik’s back legs stopped working. I took him to the emergency vet where I was told he has IVDD (herniated disc in his spine). He has no function in his back legs currently. The emergency vet said the cost of the surgery is $7,000-12,000. I unfortunately don’t have the funds to pay for this and could use any help I can get. Henrik is 5 and has been with me since he was 8 weeks old and is the best companion. Any help would be appreciated.