Just depends on how you dream. It seems to me that there are two things going on with 'dream' systems. First, the visual-aesthetic, and then, basic engineering. Let's say you are looking for a 100+ watt/ch amplifier. For looks, it is difficult to beat McIntosh, Lux, Accuphase, or possibly one of the other, boutique makers. Or for crazy insane stuff, Bob Carver's massive Silver Seven tube machine.
On the other hand, for engineering, it is better to go with an outfit like Benchmark. Sure, their stuff doesn't look as sumptuous or as expensive (and they are not as expensive). But it's going to be better electrically.
What an outfit like Benchmark could do is build two lines. Pro and audiophile. Offer blue watt meters, lacquered rosewood wood sleeves, gold tone front faceplates sans all the flashing LEDs. Maybe some tubes sticking out of the top since people like that--just make sure they are not part of the audio circuit.
Speakers? I don't think there is such thing as a 'dream' speaker. Speakers all sound different. Even the really good ones. Sometimes the really good ones sound the most different. If it's all a dream, then you need three or four different speaker types in three or four different rooms. A sampling of different designs (horn, ribbon, electrostatic, conventional, etc.) to accommodate your differing moods. It's really the only way...