You'd best hurry, they say there's only 12.9 kg left. You and Ben need about half of that, so one or two other brewers can stock them out! Maybe not so many Polish brewers down under though...Any point in grain substitutions? A while ago I tried to do this with a lot of wheat and a bit of smoked barley as getting smoked wheat here in Melbourne is a challenge. It ended up a bit bland, probably due to not enough smoked barley.
The closest smoked wheat I can find is nearly half a continent away. Still it's already been shipped from Germany, what difference does another 1000km make?
PS, Ben if you're interested - https://lazydayzbrewingsupplies.com.au/product/oak-smoked-wheat-malt/
Try to get the right malt if you can.