Help with my Dad's surgery

I am trying to raise money for my dad to help with his knee replacement surgery. He has insurance but it has a pretty high deductible and he also needs money for bills, food, etc while he is recovering. He installed carpet his whole life and it just ran his body into the ground. He was a hard worker and did whatever it took to make sure his family was taken care of. It is so sad to see how he walks now and just his quality of life. He made pretty good money installing carpet and used there savings when he couldn't install carpet anymore. He is now limited to what he can do as a job because of his health. I have been living with them the past 8 years helping them in every way I can. It breaks my heart to see where they are at financially. My dad keeps putting off the surgery because he's worried about money. My dad is such a good person and any type of help would be so appreciated and be a huge blessing for my mom and dad! He doesn't know I'm doing this so I'm hoping to surprise him! Also I don't have any social media besides LinkedIn so that's why I don't have a Facebook picture to help make it look legitimate but I will answer any questions By the way I don't have a Facebook or any social media except LinkedIn so I couldn't post a Facebook photo