It sounds like she loves 'THIS QUILT' so I wouldn't replace it, I'd fix it. I have a couple of old quilts that my DH's aunt made back in the 30's. They were a little worn when we got them from her and I've tried to keep them getting any more damage. But they need repair and I'll just applique pieces over the worn out ones..... using a fabric similar to what's there. I think that's the easiest way to fix these.