transfer of class rating
In fact it is possible to transfer a class rating from non -JAA state (reference LASORS Section F page 24).
You need to see the head of training where you intend to do your IR. Taking into account your experience a reduce training can be completed but a theorical examination and the skill test will be still required.
For information, in Malaysia we operate Seneca III, we are following the CAP 509 syllabus at the present time, as we have h particular links with UK CAA, from your UK license it must not be a big deal to stamp your rating . For info, we are going JAR in a short while but we have not yet started the procedure of approval: we are not yet JAR (However we have some JAR FI)
The Flying hour on SENECA III (something less than 200 GBP per hour - to check with the Academy-) is one of the cheapest. Malaysia is an enjoyable country that you must visit, accomodation and food are incredibly cheap, the weather in Malacca is nice for flying.
Visa can be arranged easily.
My suggestion: first contact the FTO where you will do your IR, and discuss the conversion of your MEP (can be reduced to a bare minimum if well combined with your IR)
Secondly if you are interested by Malaysia contact us