This is everything you need for a corne kit :)
2 pcbs (comes with the hotswap corne product)
2 trrs jacks (comes with the hotswap corne product)
42 kailh hotswap sockets (comes with the hotswap corne product)
2 Pro micros
42 SMD Diodes
42 switches (check out novelkeys or kbdfans)
A case or plates
Screws and standoffs
2 OLEDs
55 LEDs
Everything about this keyboard can be found here: https://github.com/foostan/crkbd