I want to build a Heller J-29 as used in the Congo during the early sixties for the United Nations. The Heller instructions say to use blue-gray, dark green with a yellow line separating the two colors. Another source says to use the first two colors,but no yellow and add orange flashes/waves randomly. I checked the Swedish Air Force web site and the example in the museum has the first two colors, but no yellow or orange strips or flashes. Any thoughts or opinions would be helpful.