try to hit 1000hr TT first.
The main hiring season is over for Southern Africa's countries.
Once you're past 1000TT, ideally with bit more twin time, you'd be more competitive for Caravan jobs. There are many posts/threads about Botswana, Namibia, Tanzania.
BTW, you can read up on tightening of the requirements for companies to sponsor foreign pilots, especially fresh from the CPL checkride and thereabouts.
If you really want to go to Asia, there are ways, but better check out Asian section, obviously. Also, with your time, you should be fine for UAE or Saudi, for flight schools. I'm afraid you'd go from US (as we know it) to semi-prison in ME. But hey, different scenery for sure and not likely to get laid or wishing to, there.