I run a few stock checking websites pretty much just for Aussie retail stores, but have just expanded the Bunnings one to cater for you fellas as well.
https://bunningsnz.youinstock.com.au/
It's a pretty simple website that allows you to paste the product's URL or SKU into the search bar and it'll show you the stock levels across of all of NZ in either a list or a map view. You can also get the price from the individual stores as they do vary sometimes.
Basically, I had the Australian version that's been running for quite some time and I tweaked it a little to cater for the New Zealand stores. Just wanted to share the love with our neighbour.
Anyway, enjoy!
Brilliant, thanks for that cobber 👍🙂