Planning ahead, we've started looking for sources for the LS3.
Pace Performance and Fred Beans in PA seem to be competitive. Does anyone else have a source that is worth exploring?
And then planning WAY ahead, for those that have started to plan the interiors of the car, what are your thoughts for covering the interior panel that covers the fuel tank, and the rear interior bulkhead panel? I think carpet for the fuel tank cover, but what for the bulkhead? Same as seats, same as headliner?
Its amazing now that I'm looking with wide open eyes, how many interior, body, parts, auto electronics, and mechanical shops exist within a 5 mile radius of our place. Even, McMaster Carr is is only 30 miles away, but that's over an hour in LA.
I am planning to do a complete interior on my car. I will likely use carpet on the interior fuel tank bulkhead, lower side panels (under the doors), floors and kick panels. Leather and Alcantara (or Dinamica) will go everywhere else. My modified console will probably have a flocked interior (suggested by Jack M).
The Rapier cars Fran did are good examples of really nice interior work, and attention to detail. The panels you are describing- and several more- were covered in a two-tone leather combo that accented the lines of the interior, and looked pretty good, IMO.
You'll need to give thought to how you are going to manage any audio, as the center stack is too shallow for a normal 1- or 2-DIN radio. You'll have to use a flat panel, probably with a car PC as I am planning to do. In my ergonomic studies (consisting of me in the car with the seats, console, steering wheel, shifter, etc setup

), a driver or passenger can reach the center stack controls while belted in, so a touch screen does make sense if you want to go that far. Several 7" screens look like they will fit into the center stack with a little work.
There also aren't a lot of good locations for switches, etc, so plan that carefully. My AC controls will be hidden, and most all other controls will be hidden or operated remotely with the ISIS iPhone app. I'm looking for a very clean, integrated look. I plan to integrate an electronic parking brake switch in the console, along with a start button- and that's all I really want to show.
Keep us apprised of what you end up selecting!