Thanks for the list!
Personally, I still believe that ALL companion custimization kits should be available to us on the Fleets and Capital planets, regardless if we have that companion or not. Why? Because as soon as I get a new companion, I should be able to instantly buy a kit to make them look the way I want. I should not have to play with them for a few levels/planets before I get to change them.
It is like playing with Elora Dorne. At first when we get her she is a white, then I have to play through Nar Shaddaa, Tattooine, and Alderaan before I can buy her kits on Balmorra. So I am going through about 3 planets with her being "white" and then all of a sudden, she is more of a "Dominican" with the kit I bought for her. It just doesn't make any sense. As soon as I get her on Taris, I should be able to run to the Taris cantina and buy her kit from the very get go!
Again though, thanks for the list and I'll hold onto this.