I assume you've read about arrangements for a prenuptial agreement in Indonesia too? It's more to protect your wife's rights as a citizen (i.e. with property). This was one of those things we didn't know about beforehand (I found the forum too late for that one).
The other thing to consider is any potential divorce. From a personal standpoint, I'd prefer this to be handled under a western legal system (in my case Australia, New Zealand for yours). Each party has their rights and those are likely to be upheld. As regards Indonesia, the consensus I've been led to believe is that the deck is somewhat stacked against you before even setting foot inside a courtroom. That may reflect my own bias and I am aware of examples to the contrary (read about Atlantis' experience, though it wasn't divorce-related), but I know which I'd prefer in terms of transparency and a level playing field. It takes on added importance once kids become involved too.
Please don't be offended for me raising these points (i.e. prenup & divorce), I don't mean it as a reflection on your relationship, just as a means to avoid some huge pitfalls down the track, should these ever eventuate. We never buy insurance wanting our house to burn down!
I'm also curious, do you know what the fees for permanent residency are in New Zealand (i.e. spousal visa)? I only ask because I'm interested in how it compares with Australia, where we had to pay an exorbitant AUD 7,000 and wait 3 years from start to finish. I'd not wish that on anyone!
Best of luck for the upcoming nuptials too.