I would drill the plastic and epoxy a pin in to line up with the top
DId you send me ( the old coot) a DM about ACCTI did almost exactly what you said on mine. Somehow I broke that nub off on the throttle side, so I used some double-sided Gorilla tape. Worked like a champ.
PS- I sent you a private message about the ACCT. Check you DM's when you get a chance!