Quite apart from the dealership question (were you born yesterday?), you're talking about low-demand parts for a low-production vehicle. Why would you expect them to be cheap? Indeed, I'd say you're lucky they're even available.
So why are you buying the parts in the first place? If you've blown an engine, do what any sensible person does, and search salvage yards. Seems like there are a good few available, from about $650 up:
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