If you are trying to sell large format gear, actually KEH is NOT the place to go. I brought a bunch of large format lenses to a camera swap meet they were attending. They were NOT interested in modern, big-name large format lenses and wouldn't even quote me a price for things like a Rodenstock 90mm f6.8 Grandagon, a 150mm f5.6 Sinaron (aka Rodenstock), or a 210 mm f5.6 Sinaron (aka Rodenstock), and they weren't interested in the odd stuff I had either, like my 14" B&L f4.5 Tessar. If you're not willing to be very flexible on price, then selling it yourself is the way you'll have to go. Much like the software developers adage, you can have it fast, you can have it profitable, and you can have it good. Pick two.