Stay out of Juba my main man. It's one fine example of a true african hole. God bless this fantastic continent. Go fly in SA or Europe. The company sending you to Juba will shaft you in the bottom anyway. Good luck old boy!
China, I think most new contract pilots just starting out don't really have much choice over their new jobs or postings. The only way you'll get a starting job in SA these days with 250 hours TT is if you're an SAA cadet, and not all of us are so fortunate enough to have an EU passport floating around to "just fly in Europe..."
I've done my fair share of contract flying (Juba included) and in my opinion its probably one of the nicer parts of the Sudan.
Good luck Africaman, enjoy the experience whilst you can!