I've got a brand new Kinotehnik
LCDVF 4N for sale. This is the one that works with the 3.2" LCD of the Nikon D800.
It's been on the camera exactly once. I can't use it because it doesn't have dioptric correction and I wear glasses so I can't get a sharp image in the viewfinder for focusing.
It'll go on eBay in a few days. New price is 119 EUR which, at current exchange rates, is about $160 USD. I'm asking $125 plus shipping.