Trace 2 files with hand sketches and convert them to a vector outline.
The outlines of the pieces in the vector file must be smooth: circles must be circles. This can't simply be done with an automatic tracing program.
It must be scaled exactly as shown in the sketch, which includes an inch ruler for size reference. The ruler itself does not need to be traced. The guidelines, written measurements, notes, and internal circles do not need to be traced.
The internal crosses do need to be marked somehow at the intersection points.