Make O scale (1-48) or larger (S scale could work too) Paducah Geeps (GP-8, GP-10). There is a huge variety in the Paducah Geeps, so numerous extra parts are included like different styles of lights and air filters. And certain details are left off, such as vents, so you can place the vents where they are needed for the particular loco you want to model. Stanchions are included if you want to use wire for the handrails. I also included full printable handrails--but realistically, good luck with that. Printable handrails are most likely to work out using the one-piece shell. I don’t do O scale, so don’t bother asking me what frame to use to power this model, because I don’t know. But all components to make a dummy loco are included: trucks, wheels, frame, and fuel tank. This is a large model, 13 inches long, so you’ll need a very big resin printer to print in one piece. And if you use an FDM filament printer the details won’t be nearly as good. There is a one-piece version of the body and one split up into parts. This model is open to improvement, so if you buy it and spot something that could make it better without compromising the structural integrity of the model, let me know. For instance, if you buy the model and find a detail you need that isn’t included just provide me with a photo of the part and I’ll add it.