The field is like the best place for train spotting but it's usually hot in the area so good for them to camp around the time the train goes past them.
Would be helpful though, right? Some conductors actually do use english in their announcements, but just simple things like "the next stop is...blah blah blah. Simple enough, though would be helpful for foreigners asking questions!
18:30 from what i know, they put value on trains depending on how scarce and special they are. They goes ape whenever a train type is retired. Or comes back for a short period, like "limited edition" trains xD So, in a scenario where the 103s being retired, it's gonna be kind of a chaos on every station its gonna pass C: