Zeefly,
Having been through a similar painful decision process (Australian CPL(H) converted to JAA-CPL(H)) I can offer the following comment:
- Your hours will count towards the requirement in the UK (its a good idea to ensure your log book is stamped by the school where you're training - it may even be a requirement, so no doubt others will comment)
- In order to obtain you SA CPL(H) you'll need to do your SA exams - if you want a JAA CPL(H) you'll need to do the JAR exams - sorry, its a painful but rewarding process
- JAA-CPL(H) min 185 hours before licence issue (unless on an integrated course) - only "training as required" for a foreign ICAO licence - no requirement to do a 30hr modular course (but a prudent move if you can afford the expense)
- All licensing requirements in LASORS http://www.caa.co.uk/docs/33/LASORS_06_WEB.pdf - check it out to ensure you meet min requirements for licence issue (eg x-country, night, instrument etc)
- JAA-FI(H) min 250 hours to start a 30 hour course with groundschool also
There is loads of "devil in the detail" so the above is just a brief synopsis of the requirements, which should be sufficient to at least help you start to make decisions.
Overriding advice: take the licence in the country you wish to / can work (and can afford !)
Best of luck and keep at it.
FO