Oh my dear, I feel your pain.....I had to unpick some really tight decorative stitches out of a block one time....It was exhausting.....You might try contacting the source where your BOM originated and see if they have any extra...or check online for that particular line of fabric....or as spartan quilter suggested, post on here to see if anyone has this particular fabric....Good Luck in your search...Hope to see a pic when your finished....