Andrew, been talking to my mechanic who does all the work on the car, he suggested, as it isn't a leak bad enough to actually leave oil on the floor, (just goes over engine and trickles down onto passenger side steering gator then everywhere else
)that i leave it alone , according to him we ( myself and him) have redone the rocker gaskets 3 times in 4 years, and wait for the inevitable chain guides to fail , as with that job you have to re do all the gaskets any way, as i said 162k all original guides, and TBH, i check the oil level , and it doesn't use a great deal really.
i know the leak is there, it doesn't look like its leaking from any where else,