I think a lot of people just rotocast with a couple of coats of smoothcast 320. I've never molded something so I'm not speaking from experiences though. Try checking out bennstreeper's thread (how to resin a helmet from start to finish in the video section). He covers the whole process from pep to molding so he probably has a video on what your looking for.
shadow1336, why not just answer him and then direct him to the link? What's the harm in answering?