The big thing is to look at postage and handeling. If something is sold cheap theextra charges can bring the total up. also read the feed back. . If you are careful you can do ok on ebay. Have you tried a google search for elvis fabric? :D good luck
http://www.jandofabrics.com/products.asp?id=185
http://www.shopelvis.com/Product.aspx?cp=796_11141&pc=EPAM0318
http://www.cranstonvillage.com/fabric/fabricDetailCol.aspx?id=3572&ColID=3572&brand=All&list=