I don't envy you at all. It was hard enough to be told via telephone conference as I was racing down 75, that "You need to make a decision involving your mother's care, sir...". I cried and cried coming to the realization that my mother needed to no longer be on mechanical life support.
I don't wish to give advice. I don't regret the decisions made with my mom. Painful to recall what I went through with my sister in order to come to a decision, majorly because my sister feared any decision. She left it up to me.
I don;t even know why I posted to this thread, I've nothing to offer except my condolences. Im terribly sorry.