I think there are a few items of Sough African Armor that released as Kits but if I recall those were all resin offerings.
Here is a review of a Ratel Kit:
http://204.50.25.179/features00/ratelwm_1.htm
Here is a link to the only kit producer of South African Armor that I am aware of.
http://www.aerografix.co.za/kits_main.htm
I think they were planning a G6 in 1/72 and a G5 in 1/35.
HTH.