Hi Rick.
Lets consider this for an idea.
Iron is made in the Blast furnace it is then transported to a Basic Oxygen Furnace or Electric Furnace to be made into Steel. Why not make the furnace a backdrop and build a BOF you can have a couple of tracks against the Backdrop for the hot metal cars then move them around to the BOF.
Lots of ways to model the Steel industry don't be put off by my photos I have posted them here just to show you what can be done by just an average modeller if you have the passion to do it. The furnace is much more complicated than the BOF the BOF could be built as a flat against the wall and I admit if I could have I would have built a flat but that would have meant Iwould have had to rebuild part of the layout.
There are tools sitting on the baseboard because I am working there and I just snapped those photos right now just for your thread.
Ask me a question I'm an easy goin Aussie bloke I'll try and find an answer for you. Roo.