What Era, Railroads, & Locomotives are you set on?

[railohio]

Do you have a time frame where you're set, time of year?

Sometime in the late 1970s; I'll pick a more specific date -- month and year -- once I refine the concept further.

Are Steam, Diesel, Electric or all/some of both?

Completely diesel.

What are your railroads and what's the rolling stock consist of for deliveries/industries?

Ironton Northern is the main road and has interchanges with major Eastern roads (Conrail, Chessie, Norfolk & Western)

For the currently modeled portion, required cars are 2-bay covered hoppers, hi-cube and insulated boxcars, and gondolas.

Is it Freelance or Compressed Prototype or even exact scale replica?

Proto-freelanced. It's based on other railroads from the era (Clinchfield and Detroit, Toledo & Ironton specifically) but never existed.