When you say the wiring harness was scoped (???), do you mean that they scoped the CMP and CKP wave forms at the PCM connector?
I've never seen a correlation code on a 4.7, and I'd think that's a secondary code caused by the intermittent signal. With new sensors, it's gotta be either an issue with the tone wheel, the spacing of the sensor, or the wiring between it and the PCM.
If I were attacking this one, I'd start by verifying good power and ground at the cam sensor, then scope the signal wire at the computer.