If you are going to remove the fabric I would advise you to undo the stitching on the seams joining the panels. That way you may save yourself a whole lot of trouble. I would not suggest cutting with pinking shears, especially if you are going to roll the hem. The hem will prevent fraying. But the center panel just might run salvage to salvage giving you finished edges with no addition trouble. Plus that way if you chose to reattach the panels for one reason or another it would be much easier to do.