Sydney international/domestic transfer on non-through ticket
We are traveling from the US, through Sydney to Cairns. Unfortunately, we booked the Cairns flight separately since we didn’t know our in-country itinerary when we booked the original international flight. We are not sure if we will be able to get our bags tagged from our departure city all the way to Cairns, since we aren’t sure we will be able to check-in to our SYD->CNS when we direct check bags in the US. So we may need our bags retagged in Sydney to our Cairns destination. Can we still use the Qantas Domestic Transfer desk and service? Can the transfer desk retag our bags for our final destination or are we forced to exit, change terminals, then go through normal bag check and security? We are flying business class from the US if that happens to change anything.
TIA!!