Will any other steering stems work on an 86200x?

[Tri-Z Pilot]

I'm having trouble finding an 86 steering stem for my 86 200x, does anyone know of any other model stems that work? I dont want to go changing triples or forks or anything, just wondered if another bike stem is the same (250r, 350x, etc.)

[oddball3]

My wifes 86 200x has an 85 200x frontend on it, bought it like that. But you lose the steering stops.
I will have to make steering stops up one day.