Scale Arena 3D Model Templates

I have a reference image of a series of component parts that i want to be able to assemble into a sporting arena and I need it turned into a set of reusable 3D templates so I can print multiple copies of each element and lay out an accurate, to-scale miniature. Every individual piece should print at roughly 6 in / 15 cm tall and replicate the intent of the drawing as closely as possible. There should be a triangular side piece and a top rail bar. a small pin and hole insert system would help with the layout. Please supply the files in STL format, fully manifold and ready for FDM printing with minimal post-processing. If you see logical break-ups in the scene (for example, repeated seating blocks or field boundary markers) feel free to separate them so I can duplicate as needed on my slicer. Deliverable: • Print-ready STL files for each arena component at the correct scale. Let me know if you need the reference image in another resolution or any extra measurements before you get started.