I see you chose to ignore the comment on No Swaps!
I am being honest, and instead of sitting around waiting (and it will be an eternity) for an in form good going horse for 10k to be plonked on your lap you have to think outside the square. Chances are you are not going to get a good horse for 10k if you don't, especially in NZ where they seem to want a lot more for them. However, if on a budget like that, you may have to get a good horse that is currently out of form, or a horse from a trainer you think you can improve off. I have known people to get very nice horses cheaply the night they have been given a 3 month ban after bleeding. Sometimes horses fibulate one off (like Blacks A Fake, Melpark Major) but people don't want to risk it so they get rid of the cheaply. Sometimes people have no idea that their horses are thumping and you can get a steal and turn it around in a week! Sure, none of these situations are ideal but you have to think outside the square sometimes and do what you gotta do.
Da Svidaniya was claimed for 6k 3.5 months ago and 2 starts ago won a FFA. He is in for 10k this Saturday. You can't honestly tell me that those sorts of horses can't be found in NZ and are only unique to Australia. Nickys Falcon and Da Sivdaniya are an example of 2 horses that have nothing wrong with them that are nice little money spinners at a reasonable price. Sure they don't meet the "NZ" criteria, but please don't be silly enough to suggest to me that those sorts of horses couldn't be found there either!! Probably a bit harder to do so, granted, but not impossible! Of course you will more likely than not get a nicer horse for 20k, but then you are paying twice as much so you would kinda expect that, right?