Max, I understand this and do indeed have 3 or 4 of the E4ZZ motor in good used condition. I am also in the process of researching how to do my own electroplating for such items, but currently I don't have the time to this sort of work. What I can do, is take the time to replace an electrical connector.
It's two things really. Firstly, there are NO(!!!) NOS E4ZZ wiper motors out there, trust me, I've looked, but there are numerous D8BZ units available. Secondly, it's an exercise in research and trying to get a further understanding of Ford's part numbering system and the reason's for part number changes.