What a load of rubbish.
So, rather than using Starmaker to make extra cast members, you expect Joe Public to wait around while you make different looking heads? I take it you add them as Latex heads? If so, that means that neither glasses, hair, make-up, bodypaint nor hats options can be added in-game. So nothing is being gained at all really. Seems like a waste of time. Stick with Starmaker, it does what it says on the tin.
Sorry mate, but this is a rather bad idea.
BSW
I mod, therefore I am.