I read an article in an old magazine that said the ideal storage place for a quilt is on an unused bed. Lay it out flat over the mattress pad, layering the quilts if you have several. Cover with a clean sheet to prevent dust and exposure to light.
The second best method of storing a quilt is to roll it on a cardboard tube or plastic pipe. Be sure to cover the plastic or cardboard with layers of clean muslin or acid-free paper. Cover the quilt again with another sheet or more acid-free tissue.
From another old article I saved: Roll the quilt around the tube, right side out. This prevents wrinkles on the right side. If your quilt has a dowel in a sleeve, it can be left in place while rolling the quilt. This person made a storage bag for the quilt, 4" longer than the rolled quilt and 2" wider than the diameter of the rolled quilt. She stitched along the bottom of the tube and put a drawstring cord in a folded edge along top.
It looks like you hit the mark with your brilliant idea!