Last time I checked, SA wasn't a JAA state.
With the hours you have, converting to a JAA PPL is fairly easy, but you can't start the IR course until you have one. You basically need to do the Air Law and HPL exams, get a radio license, and do the PPL skills test. You don't need to do any flying training, legally, but a couple of hours brush up on the test syllabus might be useful.