Jarrett, have you seen this?
http://www.tron-sector.com/games/paranoids/
Yeah, I cam across that when I was doing research from my cabinet. I didn't install the game or anything, but it looks interesting!
I decided to base my cabinet artwork strictly on the information available in the movie. Sadly, at Flynn's they never show the cabinet, marquee, or sideart, but they do show the control panel, which appears to be from TRON, oddly enough. So all I really had to go on was the billboard above Flynn's that reads HOME OF SPACE PARANOIDS. I took a screen cap from the DVD and worked backwards from there.
When the art is finalized, I plan to make it available to the community... somehow. All the graphics are 300dpi raster, so the files are pretty huge.