Looks good the way it is too me.
If it still has the data plate and it's been painted over, you might talk with the local paint shop and buy some material to dissolve the paint, do not try to scrap it off as that effort can ruin the plate.
If you could find some sandy or Rocky soil to plow, that would clean the paint off the wings, then paint them with John Deere wing paint.
It protect the polished surface, but slides right off at the next plowing.
Great find, with all those parts still on it. Some one really took care of it over the years.