Retrogaming

Sorry for promoting my own stuff, especially as it's probably only partly relevant for PC based builds, you'll find the tutorial series I built this cabinet for the Official Raspberry Pi Handbook 2023, starting at page 118 - it's free to download from https://magpi.cc/handbook2023 or you can buy a print copy at https://store.rpipress.cc/products/the-official-raspberry-pi-handbook-2023

Main differences would be that I used a kit that you might have to get your vinyl decals cut to match your cab's measurements (if you used on of the several common sets of cab measurements when building, this increases the likelihood of just being able to order decals, though), and you'll be needing USB adaptors for your sticks and buttons (sounds like you already have these though).

And here's a bunch of the resources I used when writing up my build:

Fitting Sanwa shafts (watch out for the e-clips!)
https://www.youtube.com/watch?v=xOuDvnan77A

Wiring JST:
https://support.focusattack.com/hc/en-us/articles/207447823-Which-wires-in-the-5-pin-joystick-harnesses-are-for-which-direction-ground-on-Seimitsu-LS-and-Sanwa-JLF-joysticks

Applying vinyls
https://www.youtube.com/watch?v=H3FOAxIURKY

Also, try not to be like me and lose track of where you've plugged your spade connectors on the buttons. Especially: test before you tie the wiring loom out of the way. I had to reconfigure my BAR XYZ buttons in software blushes in intense professional shame.