Cathy's kidney surgery

My dear mother in law Cathy Gross has a cancerous mass inside her kidney. The doctors say that the entire kidney has to be removed.  She has to pay at least $1500.00 up front before the surgeon will do the surgery and $1500 after. She and my father in law David don't have the extra money to put up for this necessary proceedure. We are hoping to raise $3000.00 plus a little extra for medications and doctor visits post-op. Please help! Thank you for anything you can spare! We want this to be a surprise for them.