OK, I promised, so for the record:-
Front and rear scans of the sample piece I picked up from the "Kitchen" place when I bought my offcut. I left the images pretty big to show detail. I've also photographed the sample in oblique light to show the texture (phone camera focus and resolution only, sorry).
So the "magic" order number is "4552-50".
I understand that EbonyStar refers to the colour/pattern and this is what the "4552" designates. The "50" refers to the surface finish. I believe there is also a "90" which is a less rough surface. I also believe that some other patterns also come in a "50" texture, which would probably work just as well?
WilsonArt only lists the "4552-90" on its website at present.
Here's some reading for those interested, recent and historic! :-
http://observers.org/tac.mailing.lis.../Oct/0069.html
http://astro.umsystem.edu/atm/ARCHIV.../msg00425.html