Well, I'm not sure if I understand you about the V3 head map; you mean you started from a blank template file, or an actual copyrighted existing head map? If you mean that you are starting from an existing map (and your comment about not starting from scratch every time seems to indicate this), even if you got the map from free stuff, there's bound to be a lot of restrictions on what you can and can't do with it - I'd be careful!