Bill, Your quilt is gorgeous. Since your friend expects you to do the repairs, I would make them. But I wouldn't wash it in a machine. I would wash it as she would, even if you have to use your bath tub to do it. That would be authentic. And then roll in towels (oh my gosh - how many) and then line dry. JMHO
Glad you had such a wonderful time. Hugs, Kathy