They made an 8-way version of that stick. Came in various midway cocktails that had 8-way sticks, Gorf, etc.
I literally just installed one 3 or 4 days now. I would have traded you if it wouldn't involve me ruining the work I already did (special mounting, removing it will kill the control panel overlay).
That may be hard to find. Wico 8-way balltops and perfect 360s have a similar feel.
Has anyone converted an original 4-way leaf switch Ms Pacman Joystick into an 8-way Joystick?