Only Mario. No Luigi set
$99 on Big W eBay (with eBay plus)
$112.90 with delivery on Big W eBay (without eBay Plus)
$109 at Big W website with free delivery at checkout (Spend $65+ for Free Standard delivery)
https://www.bigw.com.au/product/mario-kart-live-home-circuit…
Not as good as with CBA cash back ($88) but lowest I found