Cannot the OP purchase QF miles to use for the upgrade?
It’s a wheels up/wheels down flight time of about 65~70 minutes. The
Dann1113 and
Dan1113_+1 will survive that.
Dann1113 could check if there is award availability on QR905 (MEL-DOH)
As above, you will need plenty of time at SYD. For your interest
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