Need help restoring this arcade stick

So I've got this TE that I've been working to try and get back up and running, I have all the buttons straight and I'm making a new flap for the wire, but the joystick needs to be put back in place. I was just wondering if there was anything missing that I need to have the stick running well and won't have hardware malfunctions. I'll post pictures below to show you what I'm working with.





I'd really like to get some assistance from someone who's a little more experienced in this field.