Hi Bish,
Recently I built this same kit, and see that you have questions about the camoflage. I have read that the early versions were issued with RLM 75 over RLM 76. They were then oversprayed at unit level with RLM 76. Many pictures are available online showing some planes completely oversprayed with RLM 76 and some oversprayed in criss-cross patterns, repeating figure eights, or attempts at cloud immitation. In many cases, you can see exactly how the guy with the paint sprayer did it. Later versions were issued with black upper and lower surfaces. The upper surfaces were again oversprayed a lighter color at unit level.
Best wishes,
Gary