Use Google.com to search eg: "Hornet African heads"
other than this: http://www.ecomodelismo.com/t-55-african-tank-crew-Ref-WARR-35500.html
I don't know of specific african full figures though.
You should be able to find a US supplier, if not as below:
EBAY uk results below:
or here: http://cgi.ebay.co.uk/1-35-Hornet-Heads-5-African-Heads-/200523560720?pt=UK_ToysGames_ModelKits_ModelKits_JN&hash=item2eb022b710
panther_models_ltd do them, as do
http://www.historexagents.com/shop/hxproductdetail.php?ProductCode=HH/5
http://www.fandsscalemodels.co.uk/index.php?page=shop.product_details&flypage=shop.flypage&product_id=2450&category_id=490&option=com_virtuemart&Itemid=26