[PeterL]

Generally the best you can hope for is a few good photographs of your subject aircraft and a drawing of the basic type against which to compare them. All of the aircraft of the period were hand built and there are too many differences to include in one drawing. In any case, it's always a good idea to check drawings against other references. No point correcting a kit to a drawing if the drawing is itself suspect. And no point scratchbuilding to a dodgy reference if you are able to correct that.