You can do it. I quilted several queen size and a king size with a machine that had a 7" harp. Just be very patient. Spoiler alert: You will want a machine with a larger harp when you are done. Skip the 9" and 11" machines and go straight to the 16" (at least). I now have an 11" harp for piecing and a Babylock Tiara II for quilting. Love them both.