Hi Matt
Dave is undoubtedly one the most experienced chaps in model boat electronics that I have ever met and his wiring diagrams are so easy to follow that even an electronic numpty like me can understand them.
But there comes a point where you have to bite the bullet and buy some components to put together yourself, its the only way that Daves wise words and diagrams make real sense and you benefit from the hands on experience. Then it all becomes clear and comparatively simple to carry out quite complex electronic installations.
Dave (when he was Action Electronics) has done all of the hard work as the majority of electronic installations these days are basically 'plug & play'
Paul