For a FO the do not convert your licence as it is a long drawn out process. To get a Indo licence you need to have a Indo work permit, they are expensive and take a while to get. A lot of FO's got the permits, logged some time, and left. Leaving the company out of pocket.
Once you get captian, they get you a permit, and convert your licence, I believe it is just a few exams but perhaps a susi pilot could clarify that for me?
And yes the C208B is a Caravan, usually it is just a single pilot Op, but in indo, anything that carries more than 9 people requires a FO