You read my mind Ed. If I needed to replace both, I might consider used or if they broke because of an accident I might go with the used, but since this appeared to be caused by brittle plastic, I might prefer the peace of mind of a new part (unless the 'new' part is also 24 years old!).
Thanks Aida. That camera is kind of junky, so my pics aren't as good as I'd like, but it uses regular batteries so it's easy to keep in my bag.