over 30 white-metal castings and laser-cut precision fitting windows

This is Kato 3-518 E5 Hayabusa 4-Car Add-On

The Trainz SKU for this item is P11539434

And when the PO ran out of engines to rebuild and sell to other railroads

MTH 30-75453 4-Bay Hopper CSX ProductID_12394922 over 30 white-metal castings andThis is MTH 30 75453 4 Bay Hopper CSX. Number: 810455. High quality, traditionally sized RailKing Freight Cars provide detailed bodies and colorful paint schemes for the O Gauge railroader. MTH makes an enormous variety of RailKing Freight Cars, including many different car types and roadnames. No matter what era or part of the country you are modeling, RailKing is sure to have something for you. Its key features are: Intricately detailed durable ABS