Would it be competitive with importing a set? Asked PBR this morning and haven't got a quote back, but $14~US per, x 4 = $110au odd. Plus shipping i'd reckon would be $80au at least. Much rather pay $150-200 here.
PBR are winding down due to the Virus, so it might be worth waiting until May (as they told me yesterday). I might ask if they can send out a few sets with pricing - the AUS$ took a beating 2 weeks ago, but it should improve.