oh boy, I don’t have the time for finding specific info and models, but

• PEI sheet
• metal BMG extruder clone from Aliexpress
• hotend cooling fan is a 4020 for lower noise
• shroud is an enlarged stock-like one to accomodate the bigger fan
• PSU fan is a large 8020 with buck converter to lower RPM, with printed case and grille
• drawer, handlebar, base fan cover, filament guide, tool holder and toolbox all from Thingiverse
• my own holder for the Xiaomi phone acting as a screen for Klipper (my first model :)
• Rpi3 with Klipper in the ugly box on the left (printed wrong orientation, it’s bottom up)
• Capricorn PTFE tube
• printed springy feet for lower vibrations
• BLTouch clone by Fysetc
• Creality 4.2.7 silent board

What’s absolutely essential is the dual-gear extruder and the PEI bed. All the other stuff are nice-to-haves.