Marlee needs help for bilateral ACL surgery(TPLO)

Marlee(boxer 4yrs) tore his right hind CCL in a freak accident & was taken to emergency vet. X-ray determined it was torn. I opt out of surgery because I wanted to try conservative treatment & rest to heal it. He was doing ok for a few months then he got worse & over compensated his left leg. His left leg was now torn. Marlee has difficulty walking, sitting, 
climbing stairs & mostly just lies around depressed. His legs atrophied from non weight bearing. He puts his weight on his front legs & slides back legs under to sit. The vet consult recommended TPLO surgery, it’s an expensive & invasive procedure. No other surgery is recommended for big dogs. A board certified orthopedic surgeon can only perform the procedure. The price for bilateral TPLO surgery is $6,400. Despite my best efforts this is not something everyone has. Without surgery, Marlee will get worse,
be in pain & not live a normal life. I am not the type of person to ask for anything but with the help of generous caring people I can make it happen for Marlee.