I don’t think any of those buttons with the microswitches (Ultralux and HAPP) attached to the bottom would fit, lol. Sanwa and Seimitsu buttons should be about the same size and they have a good amount of clearance as far as I can tell.
I’ve just received my parts from Lizard Lick Amusements today. I had to dish out a total of $120 for everything altogether. I know, I’m crazy. (Additional information moved to the initial post).
Now I just need my friend to come over with his soldering gun and we can get some modding goin’ on. I’m actually still not finished filing down the Player 2 side of the stick, LOL. I’ll have to work on that too but I’m too lazy right now. The filling work I’ve done for the Player 1 side is incredibly messy but it’s fine because the buttons snap on perfectly tight. As long as I get my artwork onto there, it definitely won’t be noticeable at all. The original plastic cover thingy was peeling off as I was filling so I just ripped the entire thing off. But then I had to try to get all that sticky residue out which was even more work.