So, how to quilt this? Decided to machine stitch at each intersection with 12 stitches to the inch double up and back about 1/4" to 1/2" in the ditch along each line of the intersection. i.e. if a Y seam, start at the center and stitch out the 3 directions and back again.
Added a hanging sleeve and now it is ready to be displayed on the wall in the owner's home.
A few of the very light satin or silk blocks you can see the 10 lb. sugar sacks through the fabric. Kinda cool!