Did get the power antenna installed that I had purchased from Classic. Took a combination of parts from the classic setup and the whip antenna that I already had installed. Works well and looks great,,,,particularly when all down.

Easier to do if you pull right front wheel and inner fender shielding. Also must solder a wire internal in the Mopar radio that feeds into the power antenna to tell when to go up or down,,,,Mopar radios do not have this wire standard as there were no power antennas offered on E bodies for 1970.

Thanks to those who chimed in with their support and tips.