I believe the reason they are seldom encountered on the secondary market is because they are a custom-built gun to the whims and wants of the purchaser. This purchaser ordered his dream gun to his specs just the way he wanted it, probably had to wait close to a year for it to be completed and therefore is reluctant to part with it. If you had ordered one custom-built to your specs, would you want to sell it?...probably not. CSMC Foxes have only been around for what--15 years or so? Their owners will eventually pass on and then they'll become available. Until then you can continue your search for a CSMC 20-CE---which, as you know, is like finding a needle in a hay stack, or you could order one new from Tony or you can create your own custom from an original Fox by upgrading.