Tracing a part like you showed in the first place is really not that hard… probing 2D parts with a probe is very reasonable to do.
I’ve done this a bunch of times, and what you’ll find is that you can get a good sense of the density of points that you need to probe…
For example… Big straight edge on your part? You probably only need 1-3 points on that, odd shaped curve? up the density of probing.
I’ve actually talked about and shown the workflow in this thread: Digitizing with cnc12?
There’s a great video in there of someone probing a knurled handle.
For probing 2D parts the workflow is even easier… after converting your points you just export them to DXF with G Code ripper and bring that into whatever CAM prorgram you want. From there just trace over the points and clean up anything and you can cut your part.
You know those panels that cover your spare tire in the trunk of a car? I recreated a few of those years ago and it was really easy.