Just a note:
The German magazine Color Foto tested Nikkor, Rodagon and Componon 50mm lenses.
To all practical purposes, they are equal. Among these brands, choose the cheaper (in good working order).
In this same test, the Meopta Anaret-S had better marks than the Meogon.
BTW, lots of used enlarger lenses in the auction sites. My two Nikkor - N (40 and 50mm) were purchased this way.