I just ordered a LittleRebel Dolls Seven head :)
I wrote to Kat asking when it would be possible to preorder a Seven and she wrote back that there might not be any more preorder periods for Seven but that she had a few heads in stock she would sell. So I immediately took the chance to get Seven and bought the head.
Before I was actually planning to make Seven and Tenten twins, but I am now considering making Seven into a Mogami Kyoko from Skip Beat! as she is my ultimate favorite anime and manga character. But I will wait and see until later.
I have no idea about body for the head yet though my sister, Kurisu, have suggested April Story.