Ok gents
It took a while but now it's done. Timing chain changed for the first time ever on the car.
So I managed to get hold of the first owner. He confirmed that timing chain was never serviced on the Nav D40 2007 Spanish. When I did it, the car had 223000 on the clock. I followed advice on this board and bought Engine Australia timing chain kit, single row. Was not that expensive, around 700 bucks. Half the parts were genuine, the chain was manufactured in Japan. Sales guy told me that they use Japaneses ones cos they are stronger than Taiwanese.
I also found a mechanic, did some negotiation, convinced him to let me help him and do the dirty work (cleaning oil of parts, taking down parts and putting them back, etc.) and he charged me 900 bucks.
Now here are the photos of tear and wear....couldn't see much difference in chains but the rest is attached.
Thanks a lot for your advice and support.
Dr OzLov