Ok after loads of tests I can say that I have a resault that I am happy with :) Maya Hair Systems applied, SSS, maps (all but the specculars) and lighting as well!
After I was happy with the basic proportions in ZBrush, it was time to go and retopologize the high poly meshes. I used the 3D Coat software for this process and I always had to keep in mind to give an acurate and friendly loopflow for my rigger and my animators later.