I used these to make my switch box for the Su-25T, very easy plug and play, just have to connect momentary switches, 12 per box
https://www.ebay.com/itm/2X-Zero-Delay-Arcade-USB-ENCODER-PC-TO-JOYSTICK-FOR-2PIN-JOYSTICK-4-8MM-BUTTON/251531960798
I used different type of switches so I can tell by feel which is which
Marc..