My wife's mechanical sewing machines have decided to cause problems, all (3) at the same time.
So, while waiting on a screw (yup, I lost it on reassembly. Smallest screw I've ever seen in my life, and I've seen some small ones. I'll get a picture of it when the replacement comes.) so I can put it right again, I modified a needle plate from a long gone machine to fit her old Singer Featherweight as a stitch guide plate.
Hopefully this will work well.