This is only a configuration issue. All the artistic work is already done, and wasted for now.
I'm quite sure that there are other textures on the dev-side that never reach the game files, so this work is wasted too. Please consider sharing these data with us. I'm especially thinking at black variants of weapons, or the UK-side skin of the Ghost Hawk that can be seen in Dslyecxi's TTP3, on page 238.
Once again, there is no Artistic work needed. Just configuration.