code_geass | Got a C.C. figure?

Long story short, I'm getting bored of waiting for a C.C. figma. That is, if one ever gets made! So I want to stick a C.C. head onto an MMS body as a hold over. Problem is... I dunno which to use. So here's where you come in.

If you own a C.C. figure from the following sets (Otome-dama Nano, Figure Meister, EX Portraits, R2 EX Portraits) could you measure the head in millimeters for me? From the bottom of the chin to the top of the hair is what I'm looking for. Also, If you happen to own a Lelouch figma plus any of those figures, a comparison photo of their heads would be great too. Just a description of the difference is fine too, if you don't have a camera. I just want to make sure they look okay together before dropping any cash.

Thanks in advance to anyone who can help.