European champion- I too would not recommend arriving in Kinshasa without any contacts.
I know you are wanting to get to Africa as it sounds like the place to be and experience. But like many have suggested already, it is best to start somewhere that is not quite so wild as Kinshasa.
I would rather take the Cessna job in Europe cause atleast you will be guaranteed to get your money at the end of the month and also live to spend it rather then flying a congolese maintained aircraft where every take-off is a risk. I do not know what your experience is, but if you are talking of flying Cessnas still it cannot be too much. Therefore, if you are also low on experience, it is not the kind of place you want to be learning the tricks of the trade, as in this part of the world experience is always learnt the harder way.
Pointless to give advice if your mind is already made up but, I hope you atleast can speak some french?
Bon voyage
KESHO