Thanks again Trigon for taking the time and effort to provide such detailed responses - much appreciated.
Translating circuit diagrams to actual layouts and wiring connections (and vice versa) in various restoration projects was never my strong point! Probably just need more practice but that is sometimes difficult with this hobby which is quite often put on hold for long periods of time due to other priorities.
What I think I'll do is take the old fashioned approach and use some coloured pencils to mock up my circuit on a paper Breadboard template.
I can then Post that here for advice, guidance and entertainment!!!
