If you're really adamant you want to go there and look after yourself you've got big balls or rather adventurous.
It's not a place you want to go and have to look after yourself. English is not widely spoken, I survived by having a lot of locals around and a few of the boys were Portuguese.
Security is a huge issue there and it's probably only going to get worse again???
If you're going to look after yourself you'll struggle to get a work permit and live in constant attention fear of the police and cozoza(spelling you know what I mean if you've been there!)
Also you have to be invited into the country to get a entry visa.
$3000-$4000 is the entry level for a basic ****hole 10% of western standards if your thinking of wife and kiddies $6000+. Also the land lord will change the price depending what day of the week it is, even once you're in it.
If you're just looking for a African adventure start somewhere else!