Put them on your standard O gondola to simulate that they are really carrying steel coils inside

Here is a K-Line K7810004 Northbrook ISO Tank

The Trainz SKU for this item is P11656386

Model Number: 6292

The Trainz SKU for this item is P12412084

Bowser 41824 HO Delaware & Hudson 70 Ton 14 Panel Hopper #9044 ProductID_12321442 Put them on your standardHere is a Bowser 41824 HO Delaware & Hudson 70 Ton 14 Panel Hopper #9044. This hopper car features include: plastic body, trucks and couplers. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Bowser Model Number: 41824 Road Name: Delaware & Hudson (DH) MSRP: $24. 95 Scale Era: HO Scale Model Type: Freight Cars The Trainz SKU for this item is P12290621. Trainz Product Id: 12290621