Koa's ACL surgery

On Sunday I took Koa to the park and while he was chasing after the ball he tore his right ACL. He can't put any weight on the leg and it is obvious he is in pain. He needs surgery ASAP to prevent any further damage. Just the surgery itself costs around $5,000. He has already gotten the necessary X-Rays and blood work done. 

Koas Story:
On April 25th, my neighbor was killed in his home in the middle of the night, leaving his dog Koa, without an owner.  After a week or so of pleading with my parents, they finally allowed me to rescue him. I just turned 20, and am financially responsible for him but due to COVID-19, I have been out of work since March.

He loves the beach, car rides, and chasing the tennis ball. I hope eventually he will be able to resume to that way of life. Koa has already gone through enough trauma, the last thing he needs is pain and discomfort.
Any little bit you can give helps! Thank you so much.