I didn't say you couldn't do IR training ouside of JAA
No, of course you didn't!
It can't be done. A JAR IR must be done in JAR land
If you now want to split hairs to save to spare your blushes, feel free - it's hardly important.
The important thing is that the training for a JAA IR(A) must be completed in accordance with JAR-FCL 1 or any member state has the right to refuse to recognise the rating, and some have. If you have an FAA IR(A), you must complete approved flight training and pass the IR Skill Test in order to comply with JAR-FCL 1. There may well be JAA member states that will issue an IR(A) without the required compliant training but it's a dangerous route to follow.