Southern Pacific Switching Layout

[FCIN]

I'm thinking of getting a Proto2000 conrail gp-20, I know these were scrapped in the mid-80s, so I am thinking of modeling 1980.

Like this one? http://www.modeltrainstuff.com/Proto-200...-41554.htm

How much PC stuff was left in 1980? I assume that they wanted to repaint everything fairly quickly but I am guessing there would still be some freight cars still left in their PC paint.

I'd say quite a few cars still lettered Penn Central and carrying PC/PCA/PCB reporting marks could be seen in 1980 (4 years after the creation of Conrail). For whatever it's worth, although rare, I still see cars lettered Penn Central now and then (mostly beat up gons), but they now carry NS reporting marks, who now owns the PC reporting marks.