Given what you have said, firstly forget the 4" speakers. They will only disrupt imaging.
Speaker wise I would be looking at Dynaudio, Macrom* (the top end range) and possibly Soundstream (depending on your budget). These will all give you the clarity and dynamics you desire, along with good imaging.
If you listened to a more jazz orientated music then top end JL would be better.
For classical you run into problems on components. It is difficult to get the Infinity Kappa EMIT tweeters these days, and there really is no sunstitute. At least you don't have that problem.
* In case you have not heard of Macrom they are the car audio arm of Morel, who make some of the best drivers (in particular tweeters) in the world.