Hi Erich,
Maybe I have a different version of Chris's book as I can't see any reference in it to mounting an external oil filter.
A once-popular method was to mount a stand-alone filter unit on the bodywork to one side of the engine. It is simply connected by a couple of lengths of 3/8" hose. Maybe not the prettiest arrangement but it is dependable. If this meets your needs I am happy to provide pictures and any details you need for the installation.
Personally I prefer this arrangement to mounting on engine studs / bolts, most of which are already busy fulfilling other purposes.
Maybe I have a different version of Chris's book as I can't see any reference in it to mounting an external oil filter.
A once-popular method was to mount a stand-alone filter unit on the bodywork to one side of the engine. It is simply connected by a couple of lengths of 3/8" hose. Maybe not the prettiest arrangement but it is dependable. If this meets your needs I am happy to provide pictures and any details you need for the installation.
Personally I prefer this arrangement to mounting on engine studs / bolts, most of which are already busy fulfilling other purposes.