Suggest you contact Norm Hill (Norm Hill Aviation)
Home - Norm Hill Aviation - Worlds Largest As Removed Gulfstream Parts : Norm Hill Aviation
Not only great guy - but he has been around Gulfstream's for decades - he is your go to guy!! If there is a G in Africa - he probably knows them
Also Bob Holland - Number One Gulfstream enthusiast - ask him to put together a list of G's in Africa. You might have to give him a ride one day for it!!
https://gulfstreamjets.********.ca/
If that fails (it won't) I'll put a list together for you on the weekend.
Robert (bizjets101) CYVR Canada