Looks like Harvey Norman acquiring stocks of the RTX Cards 3070, 3080, 3090. The timelines were not clearly indicated but the pre-orders are open now. Place the order and keep it as a backup, incase you're hoping for cheaper deals. Discounted Gift Cards ranging from 5% to 7.25% can be purchased to make it a cheaper buy.
the other cards that are available for pre-order:
MSI GeForce RTX 3070 8GB Gaming X for $1049
MSI Geforce RTX 3080 Ventus 3X OC 10GB for $1379
MSI Geforce RTX 3080 Gaming X Trio 10GB for $1469
MSI Geforce RTX 3090 24GB - Ventus 3x OC for $2839