
Here's what I've done so far:
I'm building the model by following the same mechanical drawings that engineers used to build the Golden Spike National Historic Site's replica of the "Jupiter". In essence, it means that what I'm doing in 3DCrafter is similar to what the pattern makers would do to cast and build the actual parts in accordance with their individual diagrams. This will ensure that the accuracy of the model.
If it proves popular, I'll probably build the Union Pacific #119 4-4-0, along with suitable rolling stock so as to be able to recreate the Golden Spike ceremony at Promontory Summit, Utah, commemorating the completion of the First Transcontinental Railroad.