Cheapest so far (excluding the HobbyCo deal which I cannot confirm). Currently 25% off when any two eligible products purchased in one transaction (excludes Expert, Creator and Star Wars).
I just added 71029 Minifigures series 21 for $4.46 (was $5.95)
Cashrewards currently 1.5% for toys, or Qantas 4 points/$ (currently double bonus)
Total comes down to $266.21 delivered.