Fabric areas dooped dull red/orange. Tank dull red/brown if self-sealing coated, otherwise black, or painted 'Aluminium'. Other metal areas, either Cockpit Grey-Green or 'Aluminium', probably the latter as this was classed as an external area.
Airframes, if You write a book, I will buy it!!! I presume that Wellesley's fuel tank wasn't self-sealing because they have lot of losses in East Africa, do You agree?