100 CARAVANS FLYING IN SUDAN! 
Come on Artlite, just who is giving you this twaddle? I really hope you heed the advice as posted by others here, obviously well experienced in flying around Sudan.
You had better get very good training with your installed WX radar. Learn how to interpret what you see displayed as well as what you see in front of you. Those embedded CB,s tend to hide away and cant be detected in rain.
IMHO fly 2 crew with a very experienced Caravan operator, who can show you the ropes. Sudan is NOT the place to learn the tricks of the trade on your own.
FYI I operate next door in the CAR. Exactly the same weather/dodge controllers/mozzies etc. My pilots fly a minimum of 50hrs 2 crew ops in the rainy season before going it alone. They all remark that they were the better for it!
Good luck and hope you absorb whats being said here.
