Hi all again, I have searched and found the following:
Replacement oil filter: Ryco Z37 please follow the link:
http://www.rycofilters.com.au/catalo...ABALL/part/Z37
Also note that all filters with 3/4-16 thread will fit. I have the Z37 fitted at the moment and it is double the size of the factory one, no problems to report at all.
Spark Plugs: Bosch F10-6 - HGR8MQI Platinum Fusion from Supacheap +- $100