Space or click for the three variants McCloud River 39 which was the RR's newest locomotive and only SD38-2 (the rest of their fleet was of the older non dash 2 SD38). This locomotive was sold to the Union Pacific in the late 90s and is now a PS6B slug and wears the roadnumber 420.
@EtDi2021 for the trucks and other parts The MR for existing I suppose