Glen:
I'm not sure exactly what pictures you're looking for - As I'm sure you have discovered, needles in haystacks are FAR easier to find than pictures of FY4 E-bodies! My Challenger was originally FY4, and I looked for years for pictures - The Chrysler Historical Archives didn't even have any pictures.
Anyway, I do have just a couple, but not Cudas. The pictures below are a Challenger and a Charger. I will look on my work computer tomorrow - I may have 1 or 2 of a Cuda. Like most colors, it looks very different, depending on the light. I see more FY4 on early Barracudas and B-bodies, like the Charger below.
(As you can tell from my avatar, I decided not to go with FY4. It certainly does make a car rare, though!)
-Tom