Go to Maun
Pack your bags and go to Maun. Simple as that. A340 rating? Why would you want to do that? WORK and MAKE money on what you can! If its a 206, so be it. You cannot ask the bank to buy you that experience!
These guys who say they have looked everywhere for work and cant find any simply arent trying hard enough! Go to Maun, Namibia, Zambia, Tanzania. You will find something!