It can be done. I would start with making the imported image quite large. Don’t worry about its real length at this stage. Then you can trace it with the various drawing tools and resize it as needed. You only need to draw half of it so find its centerline and draw that.
I generally find it easier to trace images if I make the edge color red or green and set Profiles to 2 or 3. You might find it easier to keep the edges you draw on plane if you draw a rectangle over the image and set it to X-ray although I generally don’t do that.
I’ve done a couple of tutorials on this sort of thing. I’ll see if I can find them for you.
As for using the Follow Me tool, you need to draw the centerline and erase the rest of the rectangle leaving just the profile. Draw a horizontal circle centered on the centerline of the profile as the path for Follow Me.