I really like Warriors figures. Their head sets are are also great for dressing up figures of lesser quality - like those that come with the kit. I can't find a web site for them - do they have one?
I'd like to be able to see which heads come within which sets. Their "German head set #13" description doesn't tell me enough...

Warriors is a VLS company. The VLS website is :
www.modelmecca.com/warrios.htm
Another site of notice is:
www.udisco.com/hobbies/inv/WARRIO.HTM
(like that address...eek)
As far as the specific head set # 13 I have not found yet, but I'll keep looking for you.
Hope these help.

Bravo36, I found the picture of the head set, # 13. In my own collection of catalogs! Let me know if you would like me to email it to you.