Super Smash Bros. Arcade stick help [video/work in progress]

hey guys

So I decided to create an arcade stick for smash using a gamecube pcb. I decided to modify the analog stick instead of using a tradition arcade stick which I am fine with. I was able to get the buttons to work but where I am having difficulties is on the c stick. I have the c stick usable but my goal is to convert the c stick into arcade buttons.

any links to resources, ideas, list of equipment, how to guides, or thorough explanations would be very helpful.

heres a video to demonstrate my work so far.