Try a search on ``Youtube`` ---I think I saw a guy making one on there a while back --at least the language difficulty wouldn`t be a big issue for you if you can see it being done-- hope that helps. Paul.
[I just typed in the following :- ``How to make a custom wig / head template`` -- on the ``Youtube`` site and there is a video of how to make one --- it might be a good idea to have a person to help you make it as they can work at the back where you can`t see]