Help David Buehler with Cancer Medical Bills

Hi, my friend David Buehler has cancer really bad, in multiple places. His kidney's are not good either. And recently had major dental work involving everything. He's lost everything and is living in a small area of his sister's house in PA. He is super great with all kinds of contracting skills, even made plywood cut outs of all the Dr. Sues characters for Christmas (which also had to be left behind). But now with all of his cancer problems, he can't do the work he's most passionate about. And it's a shame because he's a top expert in his field. I'm just asking for anyone to please help out however you can, so hopefully he can get through the operations, radiation and chemo rounds the doctors want to put him through. He's barely hanging in there and could do with some positive news. {the photo is not recent because it's the best I could find under the circumstances}

PLEASE HELP!

Thank You!