Kleins has this set in stock now. What was the usual power for these cars: E8's? GG1's?
Depends upon what trains you're modeling.
The passenger car photo index shows cars with similar roadnumbers in use both on the Jersey Coast line and in suburban Chicago service.
The Kato E8 or GG1 would be appropriate for the trains in NJ, while the E8 or an Atlas GP7 (without DB) would be suitable power for the Chicago trains.