Need some extra hands on KC-390 project.

Hello guys, i`m working on a KC-390 for FSX and P3D. With the help of some videos from Milton Shupe i already did most of the external animations. Recently i started to make the UVW mapping of the model, but i need the help of someone with more experience os this stuff. I`m asking for help becaude i don`t want these textures to come out in bad quality.

Sorry for my bad english.