I found mine totally by luck. I just happened to log into the forum about 30 mins. after the seller posted. I shot back an email immediately but apparently the seller's internet connection went faulty much to the chagrin of several other very interested buyers. Long story short I was apparently the first. 🙂
The only problem was the cone was for a very expensive Schneider lens (seller kept his) and it took me several months to find one at what I thought was a decent price. That's the one downside with buying used, you are stuck with what the previous buyer was using if they keep the lens. There is not much of a market for used Fotoman cones and they are about $400 per. It is great if you are already an MF user and you have a lens that the camera can take, but buying used can definitely limit your choices...