iPhone 7 Plus 128GB cheapest Australian stock available that I can find at $1375.20 from Ausluck eBay store with free delivery using the C20TEC coupon.
They have multiple colours available and 10+ units of each. Also includes tax invoice so you can add Apple care if needed.
Other Plus models available from AUSLUCK:
iPhone 7 Plus 256GB Gold - $1495.20
iPhone 7 Plus 32GB Silver - $1215.20
Office works is next cheapest at $1399 but most stores don't have stock
Apple RRP $1419 with a 3-4 week wait
it's better to get the Plus version, just got one for 1519.20 256GB Black ;)