What you will need is a lot of magic.
Wnd turbines turn about 500 RPM's. (in a good wnd) Auto alternators need about 2000 RPM's to "start" chargng.
Low winds may give you 100-200 RPM's. (now There's your challenge). What you need is a (low RPM alternator). "google the board". Boxes, belts require a lot of wind power, just to get then started. I don't think there is enought migic any where to may it work right.