@Ninja_Bait: Well, with only 4 official Unitron sets, it's hard to say what Unitron would use. I'm just taking the color scheme and having a run with it.
@legosammy: There's at trans blue panel at the bottom, the same as on top. That gives you a flat surface with enough space to put a 2x2 plate onto. On top of that is a 2x3 plate with the pilot and some controls (which you can't really see in the photo). The pilot's arms barely fit inside the black side panels, keeping him in place.