I fully agree, the Vacheron is the finest of the three by some margin. It would be a step up in my collection and unchartered territory for me. Is it worth the (Lange 1 or Patek WT) PLUS an Odysseus and an Offshore 43 to me? It just might be. It certainly is a unique opportunity to add a rare masterpiece and would go very nicely with my Overseas tourbillon.
You are correct that I am leaning towards the Lange 1 TZ. I have been meaning to add a Lange 1 in one form or the other and the watches personality is familiar and attractive to me.
The Patek is the safe choice, and that bracelet is something I have wanted forever, but I can always do that later.
Thanks again for your thoughts. What do you mean the Lange is not a WT?