Here is a idea since DTG has mentioned and done a few shorter routes how about a terminal switching route.here are a few of many Union Railroad in Pittsburgh Pa serves steel industry and others . TRRA in StLouis .Elgin Joliet Eastern part of CN now there are tons of others .Have MP15 s SW1500 s GP 38 2 etc lots of different branches industry sidigng to switch and some even host trains from US class 1 s get interchange traffic etc