I don't think we can expect Gemini to change the antenna location.. If you don't like it, just trim it off.. A whip antenna at 1/72 scale wouldn't be visible anyway..
Here are a couple of pics I found of Overstreets Mustang and as far as the invasion stripes, there is a Mustang in the background with only "half" stripes, so I would think Berlin Express is probably similarly painted..
My only real question is whether the Malcolm hood is accurate since the later pics of Overstreets B/C had a regular birdcage??

