Be careful - a 6 month holiday visa (or visa-waiver equivalent) generally doesn't allow you to work! Doing so may be in contravention of your visa. This doesn't mean it doesn't happen, but at least be aware of what you're getting in to.
Also, be aware that you need 200 hours for the SA CPL, versus 150 (or 155) for a JAA. And to convert back to JAA involves completing the entire groundschool syllabus (9 or 14 exams), although you could skip some or all of the flight training, depending on your skill level and what the local school thinks of it.
Consider Helicopter Charter & Training in Port Elizabeth - the surroundings are fantastic, and they're often less busy with better weather than CT. They can also organise accomodation (the owner also owns a backpackers) plus lifts to and from the airport (no car hire).