I can't say for 100% certain, but I'm thinking Oswald Mills speakers and Audio Note electronics. I'm sure that I would be very pleased with a number of other systems.
If you could buy any system, regardless of price, what would it be?
After 49 years, I have a system that I fully enjoy... well almost fully. The magazines continue to review and feature components beyond the reach of most. It does give most of us the opportunity to dream. And it, somewhat, gives an idea of what might be possible in the stratosphere. It did get waaay carried away when I read about “the world’s most expensive speakers. A pair of what appeared to be two way solid 24 carat gold monitors for $5,000,000!!