Terrie Frank Stump medical journey

My twin sister, Terrie has no health insurance and has dealt with several medical issues for many years. She has recently visited Mayo Clinic at Rochester, MN where they believe she has Ovarian cancer (alot of swelling and a large mass) as well as a closing vein that needs surgery. Mayo has accepted her as a patient but with no insurance they require a beginning deposit of $5,000 at the 1st appointment. We are pursuing every avenue for medical and financial assistance. Any help u can give is a great blessing.