Just thought I'd report back on this issue. Late last week I had my timing chain, tensioner, actuator, guides, everything else etc replaced, and the noise is completely gone. The car is now also much quieter on start-up, I didn't think I had the VVT actuator rattle until I got the part replaced and now I can definitely hear the difference! I can also feel the difference on the hip pocket but I guess that's all part of owning a car like this haha.
Thanks again to everyone who offered their input/suggestions, they are very much appreciated.
Pearl White Mazda 6 MPS | Leather Pack | Michelin Pilot Super Sport 225/45/18 | SURE ShortCut | SURE CounterShift | SURE Anchors | SURE Torq R6 REM | Powered by EcuTeK