This afternoon I bought another Moxie Teenz (Tristen, for her eyes and skintone mostly) and I've done some, ehr, upgrading of a couple of my girls.
This involved a lot of body switching and eye removal. For the record: yes, it is possible to switch Moxie Teenz eyes the same way you do a Liv's, but it's a lot harder and it'll make your fingers sore as HELL. Also, Liv and MT eyes are NOT interchangeable without a lot of head-cutting-open and eye socket mods. So I didn't try.
The end result of all this insanity is as follows:
1. Miya now has a pale skintone, blue eyes, and is on a Liv Sophie body. So now she's the same size as the other girls plus more poseable, woo.
2. Chae-ri has a new head. I gave her the Melrose head with Tristen's violet eyes (Chae-ri as a character has violet eyes).
3. Chae-ri's old head now resides on Melrose's original body, and is one of my RP characters, Nevaeh.
I also have an orphaned Sophie head and Tristen MT body. I may end up selling them, or I might make them into a character for my roomie for Christmas. Not sure yet.