I recently picked up a Williams scale Tuscan red 5 stripe GG1 (I've had the Penn Central version for years) and was wondering what best prototypical scale passenger cars are to go with it are and who makes/made them.
I have several books on the GG1 and the PRR in general, but I'm still sort of stumped on the exact type of passenger cars would be prototypical for a GG1 in this scheme. I'm not trying to replicate a specific train, anything accurate works for me. I was eyeing an MTH heavyweight 5 pack but I'm not sure how accurate those cars are for what I'm looking for.