That is a beautiful quilt your Mother began. She probably didn't get it finished as it was a lot of work and time consuming. We all get burned out on some of our projects. Maybe she did on that one.
If it were me, I would repair as needed and have it LA. It will truly be a great heirloom in the future for someone in your family! Go for it. Forget the quilt police!! Nothing is perfect anyway. Best wishes on your decision...