Gary's Medical expenses

This is my dad. He's 57, and the last few years have been hard on us as family.  Over the years we've struggled with money problems, but my dad has always managed to keep us going. He works long hours and supports our family almost 100%. He pays the rent, and electric, and car insurance, and groceries. Me and my sister help with the other bills, but that's all we can afford to do. My sister is 17, and I am 20. We both work minimum wage jobs while still in school, but my dad is the financial backbone of our house. My mom has had a hard time with working given leg problems and other issues. She stays at home and keeps everything going getting everyone where they need to be. We aren't very well off, but we've dealt. 
A few months ago my dad comes home and complains of pulling something in his back and over the next several months he goes to work and deals with the pain. No one thought anything of it, he lifts a lot it was bound to happen. But, a couple weeks ago the pain became to much and he finally decided to go to the ER. We take him over after I finished working an overnight shift. They take blood and urine. They stand there and tell us that they're sure its just a pulled muscle and they say they're going to give him a muscle relaxer to help. The test come back and they end up ordering more. And then more. And more. And then they decide to check him into the hospital. The test came back showing high white cell count, and tumors on his kidney, liver, and spine. They schedule a biospy to see whats going on, but they sound in different. They won't give up any answers. 
He spends a week in the hospital. My dad is a mechanic, if he doesn't work he doesn't get paid. It was the last week of September and all of some of our bills were due. In a blink of an eye me and my little sister became the only ones bringing in money. We take both of our paychecks and empty our savings to pay for 3 bills, totally over $1200. It was no big deal because soon my dad would be back at work, and it'll work out. 
This week his biopsy results came back. He has stage 4 bladder cancer that has progressed to his kidneys, liver, pancreas and spine. It's incurable.At this point they just want to make him comfortable and extend his life a little big longer. He is no longer working at all, and disability takes months to go through. Until then we have to find a way to pay all of the bills, and everything he needs on our little paychecks. We have bills, gas, food, and all of his medications and medical requirements. (Tried to fill a prescription last night and the medican totaled almost $400). 
I'm not the type of ask for help, but we have been blinded sided and was not prepard for this at all. If you can at all any donation is welcome, anything can go to some bills or expense. We'd appreciate anything.