Don't know anything about these shops, but here are 2 that have Elvis:
http://www.ladybuttonfabrics.com/cgi-bin/fabricshop/gallery.cgi?Category=15
https://www.etsy.com/market/elvis_presley_fabric
This shop has been around for years. I have had good luck buying from them:
https://www.thespiderswebfabricshop....tore/store.cgi
(you may have to type elvis into the search bar)
oh...scroll down....it's on the right side column at the spider's web