I have around 242 hrs on ma FAA CPL with ME and IR.
In my experience, with these hours the NZCAA is very unlikely to give you a NZCPL based on your FAA CPL.
There are obvious questions that need to be asked. Why is there an need for a New Zealand CPL? Wouldn't it be much easier to just convert the FAA CPL to an Indian one, especially as you will probably need to do all the exams, recurrenct training, and licence issue flight test to get a New Zealand licence.
I would check with NZCAA to see if they will convert your FAA licence first before you waste your money.
the school says that they have vacancies, if i do my CFI there as well.
Which school is this?
Why the need to do an Instructor Rating? Is that just so you can get into the school?
Most schools I know of have vacancies without the need for doing an Instructor Rating.