don't worry about the misunderstanding, I can imagine that your mind was on other matters at the time. And I bet the Pug is an absolute hoot to drive now!? Anyway, apologies accepted, bygones and all that, happy to have been able to do something in return for all the good work you guys do in keeping this forum running.
On another note: the comment by wrinx set me thinking. I did continue driving with a knackered variator for quite some time, in part because the mechanic at the dealer who listened to the noise advised me to wait until the cam belt was up for replacement. Incidentally, he didn't think it was the variator, rather a stuck tappet, so that tells you something about the worth of his advice... So the knocking of the variator may have contributed to the wear on the first two camshaft lobes, especially because the first lobe (closest to the variator) was more worn than the second one. I'd be interested to know if anybody has come across something similar.
On the other hand, the first two lobes on the inlet camshaft are directly underneath the oil filler cap, so they may have been damaged by careless use of the oil filler spout in the garage, or dirt may have found its way in through the filler cap.