Lets put defence spending into perspective here, as we seem to be focusing on new equipment.
If you split the operational budget into personnel and operational and divide by the number of regular personnel you get a basic idea of how much each person costs. This is all after GST and Capital Charge is taken out and based on the latest figures. For NZ in NZ$ you get the following:
• Personnel $68k per person
• Operational 52K pp
• Total 120K pp.
Then compare against Australia (in AUS$)
• Personnel $155K pp
• Operational $112k pp
• Total $267 pp
Now that is more than twice as much per person to run a fully functional defence force excluding capital!!!
Now I know that there will be areas that we do cheaper, cost of living and capabilities that NZ will not have such as Sub but is gives a good basic comparison.
So re introducing the strike force, extra frigate(s), and army capabilities and making sure the NZDF is properly staffed would take the total NZDF personnel from 8,500 to around 11,000 personnel IMO (the govt has already indicated an extra 1,500 are needed).
So if you take 11,000 and spend $220K pp (well under the Aus average) and you are up around 1.6% of GDP in operational spending alone, Australia spends around 30% of its budget on capital and you are looking at around 2.3% of GDP for the NZDF budget, around NZ$3.6b a year in current terms..
Now I realise that this is a rough comparison, with much room for error, but is does give an idea, esp. when I am sure many in the ADF would say not enough money is being spent now on retaining and attracting recruits, and the cost of capital is always more than planned as well.
These figures come from the latest budgets from both countries.