I have a top that was made by my grandmother in the 30's. I'm going to have it quilted by my long armer. I am going to use muslin for the back and 100% cotton batting to keep things more authentic. After it's quilted I will see to the stains. As far as the Sunbonnet Sue's I would frame them and hang them together. I'd be worried sick trying to sew that old fabric myself.