You would be better served by considering skeletal morphology. There are several extant human groups which are of that stature, but none have the morphology of Lucy.
There really are folks who can look at a skeleton, or even a few bones, and tell a great deal.
But thats only on Halloween... or in Abbott and Costello movies.. plus something does go clack clack in a Shamans JuJu bag.. I don't even want to know what that is..
I believe that Boneology can be a psuedo science.. prolly evil too..