WOw, what a story!
It looks like the beauty of this quilt - or the pieces you have left - was in the quilting. The vine and the leaves going around shouldn't be hard to reproduce , and your fabric selection has a very similar color palette.
If the old quilt was a queen size, what type of applique/pieced design was in the middle?
How big do you want to make the new quilt? Wall hanging or bed?