Some clarification on the topic:
1. Hamburg Steinways, though by design the same as New York, are indeed very different animals.
2. They are MUCH more expensive than New York.
3. Pretty much every classical recording you hear made in recent years outside the US is going to feature a Hamburg Steinway.
4. It is pretty much a consensus that this is the "best" piano in the world, if there is such a thing.
5. You will notice, if you listen carefully, that these are indeed brighter instruments than what the American household taste would dictate. This is one major, major gripe I have with the run-of-the-mill New York output: Many of them are duds in the upper treble, and simply can't sing.
6. I priced shipping a B from Europe to the East Coast (Washington, D.C) about 7 years ago, and got a Euro 3,000 quote.
You can go to Hamburg and arrange a factory visit and chose your own piano. I have a good friend (concert pianist who trained with Wilhelm Kempff) in Hamburg who is a professor at the Musikhochschule (Germany's Juilliard) who has a good relationship with the factory. Contact me on the private messages if you wish to go this route.
In the U.S. THE supplier has been Pro Piano. Ricard (the owner) was referred to me by Larry Fine personally. Ricard rents all over the U.S., and keeps a steady stock of Bs and Ds. He has both a Manhattan location and a Los Angeles location. I once visited his New York warehouse. Full of Hamburgs! (I ended up buying the sole Bösendorfer he had). He WILL sell his rentals. I found him to be very reasonable indeed. When I was in his warehouse, Zimmerman's piano was there, as well as Barenboim's, if I remember correctly. His web site is
https://www.propiano.com/. This, I would suggest, would be the best route to go if you don't want to travel.
I currently have a Yamaha C7, but when I am ready to upgrade I will go the Hamburg factory route (I am German and go overseas on a regular basis).
Good Luck!