Can any skinmakers out there make JA skins for these three anime characters? I'll post links for pics of them, they are pretty popular characters but here there are in case you've never seen them.
Raww Le Klueze (Gundam SEED):
http://www.987.info/zaph/gundamseed/characters/raww.html)
Char Aznable (Mobile Suit Gundam):
http://www.geocities.com/charmiko/scans5.html)
Hajime Saito (Rurouni Kenshin):
http://www.fortunecity.com/rivendell/darkness/1125/saitoh1.jpg)
Well... unfortunately, the first two seem to require a new model... I guess you could use the jedi_hm model for it, but it would take forever to look through the parts...
To understand the problem, you have to think of a model as a statue. The skinning is the painting of the outside of that model. So the reason that you can't make the helmet on that one character is that the helmet shape doesn't exist. You can't spray paint in thin air.