If you decide to take them apart and redo them, take a picture first. Then take a picture after redoing them. Frame the before and after pictures together, then when later they become quilts that you pass on to the next generation, they will be able to see where they came from. Also, be sure and label them, including the time period you think the fabrics are from. I have some of these quilts from my husband's family that I want to "redo" because, like yours, they were utilitarian and they are not in good shape. My DMIL wanted me to do something with them.