I think if you tried to stitch in the ditch around all those many pieces, you'd never be done in time. It's a large quilt, with many pieces, so the quilting will not really show up a lot anyway (unless you did custom "quilted to death" quilting), so I think I would just quilt an allover pantograph. This quilt doesn't need knock-your-socks-off quilting to make it gorgeous---it's lovely on it's own. And if you keep the quilting simple, you'll be done in time. JMHO