750tt is all you need. The multi135 operators are generally happy to take pilots on higher total so long as they have low multi time... The whole point is it gives them a year or so before the pilot shows up on the AirNZ radar (or similar).
There are plenty of pilots in NZ with the hours which is why you want to get a foothold if you can.
DT tells the truth though... if you want better pay and work conditions you really would be better off in Aus... a difference of about 20-30k and about 500tt per year for the same job (That's in almost every industry though, not just limited to Aviation... hence the brain drain).
The problem most Kiwis have with that plan is the living in Australia part
