Mopar friend in PA needs help

Any decent Mopar guy who knows how to navigate electrical issues? Car is near State College PA.
My good friend who introduced me to the world of Mopars recently picked up another 69 Roadrunner. Its a stock 383, 4 speed with newer electronic ignition.
He is having an intermittent issue that appears like its rooted behind the dash, no start and no dash power at times. Car has not been molested and a dash wiring harness has already been ordered.
He's not the best with 12V electric and would compen$ate the person willing to help trace out this intermittent voltage or ground issue.
(I'm now down south and cannot help out).
PM me if interested, so I can give you more information.
Thanks,
Joe