Some of these aircraft were finished in the 70/71 or 81/82 with Hellblau (65) undersurfaces, such as 1./KG51's aircraft in France during 1944. The more common scheme is indeed 74/75 with 76 undersurfaces and usually 02 used with the 74/75 colors on the fuselage mottling. The prop spinners should RLM 70 or a variation adopted by particular groups such as yellow in the case of Egr.Gr.KG51 in Germany during 1944.
The Italeri and especially the Fine Molds kits in 1/72 scale are superb kits of the Me-410, though a bit more expensive.
Joe