miki 4 dev kit, basically a stripped out .cr2 from which you can transfer the rig. I don't have Miki 4 but I'm sure that the kit comes with her, or can be gotten through SM, or somebody has made one for distribution. Should be pretty easy to find...

Edit_ oh yeah, weight mapped... That's a whole different situation I imagine. I'm still teaching myself set-up on a very beginner level (I'm just thrilled to have easypose dials at this point) so that stuff is out of my range of commentary. I'm sure somebody can point you in the right direction...