Brilliant find. Now, this man I have finally found was from Blacktown, but in this article, from 2017 it states :
"The 58-year-old moved from Sydney to London more than a decade ago, where he remained frustratingly out of reach for his alleged crimes."
https://www.smh.com.au/national/nsw...ic-faces-court-in-sydney-20170309-guuuyu.html
This may have made it just before 2007, but is evidence that he had connection or familiarity to the UK prior to that. However, it would have made him just 38 in 1997, as opposed to Marion at 51. Would this age gap make it less likely? Anyone can lie in an ad about their age. It may be Marion met with him, but by which time it was too late. Maybe she believed he was a bit younger than he said, but age didn't matter to her.