Hi,
just some comments.
None had done a rotation on ITU or neuro!! - used their student placements.
Of course. The deal is that your education has to be similar to the NZ one, and if it differs (e.g. only 3 years in GB, compared to 4 in NZ), then you have to prove work experience for one year plus to make up for that gap. It does not matter in which area you have the work experience, as your undergraduate training otherwise satisfies the board. That's how they explained it to me.


Am I allowed to do the same (qualified 1995 from the UK) or will this not be accepted because it's over 10 years old?
I haven't got the application package here any more, but I'm sure, you can. It's a good starting point anyway. However,... if that's the only evidence you've got, they might say, that you haven't updated skills over the last 13 years. Just not a good look, I think.

the NZ board will have some descrepancies
... sorry, as far as I know, they have to go by the rules as set under the HPCAA. They are a qualifications authority, not an immigration service.

Good luck,
Fyzzzio