Hey Dwight, I moved your thread. You will probably get a better response up here. The only advice I can give is to try Rockler, or contact a higher-end stereo place in town and ask them. Hopefully you will get better answers than mine soon. Show us some pictures when it's done.
Dave
Sold by the linear yard - 68" x 36" .......... $ 14.95 plus Shipping & Handling
Also. The folks over at Audio Advice on Glenwood Avenue in Raleigh may be worth checking out. They may not have it in stock, but could recommend a local source.
Here is another good choice, they are great people to deal with. Let me know how much you need because I didn't end up using the cloth I bought and left the speakers I made exposed.