Hip replacement

I am a 47yr old mother of 4 and a 5 year pelvic cancer survivor in need of a total hip replacement. The radiation  from my cancer treatments has damaged my right hip causing me severe pain .I am diagnosed with osteonecrosis. (Death of the bone)in my right hip. I am asking for help with my medical expenses to have a total hip replacement. My insurance doesn’t cover all the expenses. Please help me to regain a better quality of life. I also have only one kidney due to the area that was radiated ...it is being slowly damaged by the pain meds that I have to take for my hip pain. I thank you in advance for your help God bless you.