I’m the OP and the dealer’s communication was great... until it wasn’t. He went dark for a week with two emails unanswered. I was ready to negotiate a price. Oh well.
Good news is Hodinkee popped up yesterday with a 1601 and it was just what I’m looking for - so I snagged it. It arrives today!
https://shop.hodinkee.com/products/1...reference-1601