I usually get the new iPhone from Apple NZ Online on day 1, even if I were to use Spark for this via online pre order I'd still need to go into store.
SIM Swapping as you say is wide open for fraud, hoping Spark can bring it to the App or an online portal verified by your login
Either way you will still need a second screen to scan the code and set up the device, either the old iPhone or a PC


