Sorry for the late reply. People usually start on the $3000 mark for C208's around this region and if you don't have King Air or 406 time expect to start on the Van. The guys there get paid well, good benefits too but you do usually wait a while until you are released.
Again, the best thing to do is to be here and see them in person. Sending emails doesn't usually help.
The 1900's are under Tanzanair's AOC me'sa thinks but owned by the Kempinski Hotels group to shuttle people upto their new lodge in the Serengeti. The owners do the hiring.
Hope that helps!