My two eents.......Chose one panel. Use your stash for fun borders. but make sure that it doesn't get wider than a width of fabric for the back unless you have enough yardage for a 40+ inch back and stitch it up. Then some easy, peasy quilting such a free style wavey line and you are almost home. Binding by machine and done! Oh, I know I made it sound so easy, but to me it sounds like you are getting "stuck in the weeds" of planning. Been there and I hate weeds!