Welcome to the forum. Your experience will be interesting to some of our members as some have had bad experiences dealing with gold scams coming out of Africa and it has been discussed openly here. Personally in my refining experiences I have seen buyers come back from travel to Africa to buy gold and they all ended the same way. They were sold a large quantity of gold at a sizeable discount and when they took their gold to a refiner back in the USA, the bars were not gold. Sometimes they were bars and sometimes it was gold sponge (a term for precipitated gold from refining) but it was never worth it's weight in gold, in fact, they never contained gold.
We know from threads we have had here involving refiners who bought gold in Africa and refined it and were successful, one particular refiner in India comes to mind. So we know there is gold available from Africa. And if you can successfully work your way into selling gold from your mine into a sustainable safe business transaction to foreign buyers, you could do well. Just know the odds are stacked against you.
Not to rain on your parade, I would love to help you succeed, and answer any questions you may have about processing or analyzing your gold to assure things on your end. But know it may be an uphill climb.