First off, I'm very sorry for your loss. What a terrible tragedy.
And your quilt is amazing. I've never actually seen a binding done like this. It's looking great. I'm trying to decide if I have the patience for doing it this way. But I'm thinking perhaps it doesn't take quite as much fabric (as in, you can use up the ends you have left over maybe???)
It's just going to look fantastic when you're all done. Good job!