Oh my gosh! I have done it!!!
After many months of planning, watching flight patterns, availability (or lack thereof), reading threads, asking questions and getting amazing help from knowledgeable people on AFF and today after 30 minutes wait on hold I spoke to the lovely Cynthia.
She added all my flights to my original booking and waived the points change fee because I could not book it online. The confirmation email has just come through Woohoo!
Bookings as follows:
SYD - DUB CX stop
DUB - LON BA stop
LON - INNS BA stop
INNS - VCE land sector
VCE - MAD IB stop
MAD - SIN QR stop
SIN - SYD QF this flight is yet to be added because as a lowly silver no J options available to me yet. But I have been looking at flight availability on QF 297 days out and there are many options, if not direct to Sydney via Brisbane or Melbourne.
Total fees for 2 people in J $2542 - 520,000 points.
Cynthia was lovely and so happy for me that it all came together. She said I was very lucky to get the CX flights as her previous 3 calls today were all people trying to get Cathay flights with no luck.
And now for a glass of celebratory wine! Thank you everyone!