If you add a patch to that area, and then add others around the edges it would look planned :wink:
If you want to make the binding wider, take a scrap 6 1/2" wide, fold it, press and then pin baste it to the quilt in the same manner that you would sew it. See if that is what you want, you can trim it down until you get it where you want it.
As to where you stop sewing, if you use a 1/4" seam, you stop 1/4" from the ends.
If you use a 1/2" seam, you would stop 1/2" from the end :D:D:D