Why not make routes from the East Germany period? There are already locos from East Germany and towns in the game so why not change them into Deutsche Reichsbahn (DR)? DB Br 232 DB Br 155 DB Br 143 East Germany existed from 1949 to 1990.
This is a good East German route https://rail-sim.de/forum/wsif/index.php/Entry/2128-Projekt-Freiberg-Sachs-V2-01/ It has proper East German style stations, signals and catenary Have a look at the Manual - https://rail-sim.de/forum/wsif/inde...l-for-Route-Projekt-Freiberg-Sachs-V2-01-pdf/ There are a number of requirements but most are freeware And it's probably better than a DTG Route. Peter