I use 505 spray with great results. If you can use a church, Senior Center etc. I would take all the quilts and a friend to help hold the fabric. Lay down the back then the batting. Lay half the batting back and spray the baking. Smooth well from the center out. Lift other side and repeat. Then smooth all the batting well. Add the top in the same manner. After the top is flat, turn over to smooth out the back. Done. This will hold together well even while free motion quilting!