Additionally, no airline outside of Europe will have a problem with a SACAA license or require conversion to JAR. There may be one or two exceptions but then you will probably find they are not worth working for.
If you are really passionate about flying for a living, there is no better airline to work for than SAA. The only way to get there is to move back to SA, get your CPL and instructors rating and get the hours you need to move into the local airlines and eventually SAA.