kayDUB
Contact Stanley Gibbons, I think they are in Joburg, or have an office in Joburg. They have valuators and can point you to some auctions where you can put your stuff up I think.
My Dad has a massive (and massively expensive) stamp collection and he was in contact with them. I think he ended up working directly with a company in the UK, but one or 2 of his stamps are worth like 35k alone.
