Jim, if I remember correctly the "compare and buy" insert was made to be illuminated. Do you plan to add a light?
I tried a couple small light fixtures that I had, but the distribution of light just didn't look good to me. Finding a lamp that evenly lights the insert will be an ongoing back-burner project.
Jim, LED strip lights work good as you can bend and form them. That's what they use in the formed letters now instead of neon. Maybe even a circular fluorescent tube.