Just for completeness sake Epic model is now complete.
https://a360.co/2XZg1u0Some of the details
17 Discrete Externally created custom models linked into the design (some of them then used multiple times) plus about 6 small Models created in the larger model.
Maybe 20-30 externally sourced models/components from various libraries are used within the various models.
Something over 150 Sketches
Having a quick look at some of the sections and there is well over 1000 bodies in the overall model.
Ryzen 3700X 32GB and a 5700XT Cruises fairly much. The GPU numbers peak around 40% if you really spin the model around, memory usage is fairly light peaking at about 8Gb. That all changes when you try an in-canvas (local) render all cores pegged and very light GPU load
The online viewer also has some good features you can right click on bits and hide them or also add markups and export views.