Shot in the dark here but if you have a 240mm gengetsu in your possession and want to get rid ot it, here i am. Wether in semi-stainless or clad over white#2...
Try a WTB post on kitchenknifeforums. You need some number of posts to sell, but anybody can post a buy thread :D
might be hard to find... they sell out so fast and are hard to restock. Also, those that have bought them rarely sell them.