Watch just got back from it's first complete overhaul and has been worn about 10 times in total. Complete with all boxes and papers and plenty of warranty. Plenty of references if you need them. Asking $32.5K shipped in the CONUS. I have it on a rare OEM blue alligator strap with black trim that really makes the watch pop.
I've got a Patek Calatrava 5127R, one of the last pieces made by the manufacture in Geneve that I personally picked up at the Salon in 2013. Worn only on a couple occasions (Christmas/Easter), and been sitting in a dark hole since! Complete and in LNIB condition, similar to your Lange. I'm first owner too.