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I am sorry that you have not been helped yet. I just came online and saw your question.
I am not sure what you are asking exactly - if there is a work around to this, or whether there is an aftermarket source for the part
In either case, there is no workaround at this point, and no one aftermarket makes the RBC(rotary blade coupling). Ford redesigned it in 2013 so you cannot use one from a 2012 model. The only option at this point is to try to find one at a salvage yard