I don't have the requested data on file - sorry. Why don't you approach our friends at Carillo? They make a truthful replacement of the standard conrod and will have these dimensions on file.
As for a two-piece conrod, this will be a development in recent years by one of the engine fabricators (MPL, Minnovation, SMA). AMC always fitted a one-piece conrod.
I have a picture of the genuine part. PM if interested. See also this 7R conrod (the G50 sample is identical, to my best knowledge):