Not sure about the "artic blue" colour.
If the colour of your car is genuine, Ford called the Sundowner blue "Wedgewood" which was a gorgeous metallic blue.
A close friend owned two Wedgewood blue Sundowners from new. He bought the first one, unfortunately he destroyed it in a short time, then bought the second brand new and destroyed it in a short time also (idiot [}:)] [:(!] [8~2]).
He had the dealers remove the Sundowner decals prior delivery for both cars. I recall they were various shades and hues of orange.
Ford brochures may help in the exact colours.
Included below are photos I borrowed from a current ebay listing
# 270735122211 for the yellow Sundowner. They appear genuine. At least these will give you an idea in shape and sizes etc. Hope this helps a bit.
