I decided to go ahead and get these quilts finished. I ordered batting and backing/binding fabric for each.
I ordered two twin size Hobbs Heirloom 80/20 battings from Connecting Threads.
I had my usual problem making a decision on backing/binding fabric. I finally narrowed down the color to a light blue and found this at Connecting Threads in their solid collection called Sky. I ordered 11 yards of this for backing and binding on both quilts.
I'll be piecing the backs and sandwiching these as soon as I can get my fabric, and get it washed and ironed.