Although that is nice work, it is a LOT of work. The original black and white image can be converted to a DXF file using INKSCAPE in a matter of minutes.
The problem that nearly ALWAYS crops up with projects like this is ... what is the name of the font? I have an external hard drive with some 450,000 fonts on it. Without the actual NAME of the font, you go on a hunting trip each time, to try to match the font, and even then, it is possible that the original artwork was created with a font that was stretched or widened, or otherwise altered from its original form.
In a situation where I MUST match the font but the customer doesn't know the name of the font, I add a charge to cover my time to visually search for the font. Sometimes I get lucky, while other times ....
Joe