You ever consider making your own? A2, D2, 154CM, 440C, ATS-34, S30V, CPM 154, and others are all available on line at reasonable prices in sizes that suit a one time makers needs. Shape with a hacksaw, dremel, angle grinder, files, and polish with sandpaper. Off to a heat treater and order the handle material of your choice. Attach with bolts, pins, rivets, and epoxy, shape and polish, and voila, a knife made to order for your needs. It doesnt have to be pretty, but if you take your time it can be. Many custom makers got their start by having to make their own knives with features they couldn't get anywhere else. All the above steels are excellent, and are air hardening, so will offer more choices for heat treating. Texas Knife Maker Supply and Paul Bos come to mind.
My second knife was a 3.5" O1 blade hunter for a friend. Full flat ground from 1/8" thick stock, torch hardened, and handled with a cherry/mahogany hidden tang handle. Ugly as sin, but the edge would ring like a straight razor when tested for sharpness with my thumb. I had access to a hardness tester and proofed my hardening process before attempting. Aimed for 58, got 57.5. Close enough for gov't work. Took me about 5 hours to shape the blade using a little Harbor Freight belt grinder and starting with 80 grit belts. The second best knife I've made to date. Hope to change that tomorrow.
