Schlick

Virginia,
I agree, Barb is pretty amazing and APQS is lucky to have her. Some time this next summer I’m going to take a little road trip to see Barb. I have an older Lenni that I love but I’d like to test drive a few of the newer machines. 
I’m sorry about your husband. And then to leave your home and move 1/2 way across the country is a huge upset. I hope your quilting brings you joy. 

Even if you sew scraps of fabric to all four sides, if the quilt top is the same size as the back, it's absolutely impossible to avoid quilting the extra strip's seam line into the quilt while quilting it. Trust me in my 15 years of longarm quilting, it is nearly impossible to accomplish this very difficult and extremely stressful situation. 
I would contact customer and ask her to provide you with larger backing fabric that is at a minimum 8" wider and  8" longer than the quilt top. 
My job is to quilt the customer's quilt without pulling my hair out... it's not my job to perform miracles due to the failure of the customer to provide ample backing fabric. IMHO. 

My DH outdid himself today. I was using curtain rods to support my clamps and I asked if he could make something for me ... he sure did!!