A Borresen+Aavik+Ansuz setup is certainly top tier sounding. I've heard Borresen 5 and Z1 Cryo with assorted Aavik and Ansuz gears. They certainly sounded precise, organic, and not clinical at all.
If money is no object, sure, just walk into an Audio Denmark dealer, and get the whole package. No need to worry about system synergy since these brands are meant to complement each other.
Can you get equal or even better quality cheaper with other brands? Of course, but then you would have to experiment and do your research. My own Cabasse setup is equally as good or even better than the Z1 Cryo setup I've heard, but it took me a while to tweak the setup.
Consider Gaudek Akustik as well, their sound signature is nearly identical to Borresen. I've heard Berlina RC3 paired with Perreaux 300ix and they sounded no different than the Z1 Cryo setup.