The receipt he gave me was a hand written one - says he got it cheaper for cash at a mechanic in hornsby. I called them and they stated they recommended and quoted him to replace both the chain and gears once they had the engine apart, but the owner only wanted to pay for the chain.
So he did not get the timing gears replaced. Other than that the guy reassured me the car is in good knick, and said they checked the oil after 500 KM's and it wasn't using any, still not sure if the guy got ripped off or what. As I said it does have service history with highest intervals being 15k - however it was driven in Sydney, could take you years of peak hour traffic to gain 15k... Does anyone think it matters that the timing gears were not replaced? And could other issues potentially arise?