I went about it a different way.   I took her into the face room where I just fiddled about till I got something I liked and spawned a morph, back to Pose room and combined both Anastasia (about half strength) and my morph.   I'm afraid the texture is not an accurate one since I just played with the alternate diffuse colour to get a darker shade.  Ideally I'd take the texture into Photoshop where I would change the colour but darkening certain areas more and keeping others lighter (palms, etc)  But this was just a quick experiment and I like how she still resembles Anastasia.