Kewaessa,
German planes that were painted after mid-August 1944, only had to paint the main angles of the "balkenkreuz". This consisted of black being used on the lighter shades (RLM 76 and RLM 21) and the white angles on dark shades of color - RLM 82,83,81..ect...
So the bottom of your 109 would have, in theory, just the black main angles on it. Not the inside or the outside trim