gus, you have a project that can go two ways, either very difficult or an average build with some attention to detail. As others have said you have a sport kit not intended to be scale. You can build the plane, gain the experience. paint the plastic covering and have fun. Or you can slave over this plane, trying to make it more scale and in the end.. its still not that scale. Something that is invaluable but often NEGLECTED by new and even some seasoned scale builders are RESOURCES. By that I mean..learn what the plane really looks like, inside and out. Study about the plane and its different models from several sources. Sucessfull Scale modeling starts out with (hopefully) Knowledge of the subject. After you have learned what you expect at the end of your building process you'll make wiser choices at the beginning (Kit/plan) selection stage.
Techniques are something you will continue to learn even after you have build several planes. I would limit myself (for this project) to building a very neat, accurate kit. Paint it in authentic colors complete with markings and fly it. That's plenty for a first project. hope this helps BobH.