Never got to see that RS-2/scheme in real life. They changed that paint scheme at the end of 1963.
Those fantasy passenger cars above would not be accurate in style or size operating with any MTH LIRR diesel. Best to find the LIRR "true O" Atlas T-man commuter coach cars.
Diesel looks nice but would not go with power units after 19 63 plus I dont need a 3rd RS3.