I quickly went over the items in the wiki, there's also "Personal battery MK2 Mk2", "Personal roboport MK2 Mk2" and "Energy shield MK2 Mk2". These are the actual ingame names merged with your postfix. Watch the capitalisation of our friend Mark if you don't spot it :)
I made the OP for the memes, it turned into an actually helpful contribution :)
Your example of the prod mod will in the final form be "Productivity module 3 Mk5" - also a bit cumbersome. Other modules and Assembling Machines are affected likewise.
Ok, that's enough nitpicking from me.