Either of those patterns mentioned would work just fine. I too agree with black for the sashing, but be sure to test it for fading. I purchased a black for an amish design and it faded so bad that it now appears to be a deep brown. It was from a quilt store and very expensive. It is such a wonderful thought for you to do this for her. Even though my usual palette is 30's or civil war, I just love #5. Makes me think of the Gees Bend quilts. Good luck.