What I do when looking at a plane to start from scratch with no plans, Is get on google images and print out a "3 view image" of the plane you would like to build. This will give the profiles and proportions you can easily scale up. This is a top, side and front or back view that you can pull from.
This is what I used for the Kitfox. Try to find the simplest drawing to use.
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This will give you an idea of how the plane is shaped and where things go, gives you a 3 dimensional view that is easily transferred to a 2 dimensional plan