Do japan imports have different parts from the Eu mazda mx5 mk 1?

Hi im really trying to go for a mx5 mk 1 for my first car.
Doe my father is against it since the car is 25 yrs old and he knows all the tricks to the trade he warns me theres not a lot of good cars out there.

Rust is a big one. And since the cars have a lot of milage he said id have to take the engine apart to even tune it up. Moral of the story not the best option.

He also warned me that japan imports have dofferent parts compared to the EU cars. Is this true are prrs harder to find or get?

Thanks Jake.