This is a fantastic group.
They are relatively new and were a life saver for my kitty MomCat Rose.
They do fund raising as well as special needs. My MomCat was a fundraiser cat and they raised all her funds for her surgery in 24 hours.
Please be sure and check them out.CatsInCrisis
Thoughts and prayers are with you.
He is a beautiful cat.
Bless you for helping him.
Also please be sure and check out IMOM
Another great place that I have gotten help from. They are all so sweet and caring. They helped me with my kitty Big Daddy when he was shot in the leg by some cruel and heartless person. He was able to get the surgery he needed so he could lead a normal life again. Big Daddy reminds me a lot of your kitty. He is a seal point Himalayn/Siamese mix.
I know both of these sites are listed above but since I have gotten help from them both I know first hand how great they are.