I like entry #3. Can you just do just the orange and arms, without the plates, and make the arms orange as well? I like a stencil style font if possible as well.
Here is what it would look like with stencil font and the plates gone. The arms will take some work for me to make orange, but I will submit another entry later on in contest with orange arms. When I first made them I locked it so that the arms could not be altered so I might have to redraw them from scratch and that will take some time.
I have just uploaded 4 newer versions of the orange with orange arms, some of them I changed the font just a little bit. Two of them have a solid black background and the other two have a black diamond plate background. Hopefully you can see the difference with this low resolution versions. Feedback if you please.