Ok, I'll be starting the vest soon (next couple of days). I've studied the pics, read all the posts, and paid careful attention to what those have seen the exhibit had to say. The vest has a certain sheen to it. Not shiny per se, but a bit of reflective quality if angled correctly in the light. I saw some fabric called "Satin Twill"(I think) or something close to that at JoAnn's. It had a stretchy quality that I balked on. The sheen seemed perfect, though. I asked here (and at WalMart) about the sheen as I had a swatch of drapery that looked dead-on to what I wanted as far as fabric/sheen etc. Perhaps the sheen was a result of a Scotchguarding process. I was told it was a chintz. Ok, but pricey. I then found a remnant at WalMart that may fit the bill. The piece at WallyWorld had little to no sheen so I asked about a spray-on Scotchguardish product. I found a can of "Hi-Shine Glaze" that can be used on indoor furniture and has a flexible, high shine finish. I will try a VERY light application to a test swatch soon and post results of my tests.
I will still try my first and foremost supplier of fabric for my sewing projects, my upholstery fabric outlet, for even more accurate material. I will try to get over there tomorrow, as I am pumped-up with all this Fett thinging.