The route from Wesel Hbf to Koblenz Hbf has a length of around 160 km. The RE5 drives from Wesel to Koblenz with the DB BR 146 and 2 modernized Dostos from the 4th Generation. My suggestion for this DLC: Around 160 km long route from Wesel Hbf to Koblenz Hbf DB BR 146.0 and DB BR 146.2 Doppelstockwagen, Dosto97 modernized Some freight
You might need to consider this part of the route is in game being Köln Hbf to Dusseldorf and Köln Koblenz sections. What did you need to do is do it as Wesel to Dusseldorf via Duisburg Oberhausen Hbf stations.