Turned out nice. I will have to follow your directions when ready. Disassembling not required . Clean knife ,1 pack of powdered dye, water quart?, add some? vinegar, simmer 15 minutes. Ok I think it really turned out good and 15 minutes isn't bad. I like the success stories.
I used about half of the pack of dye, and maybe about 12 ounces of water plus about 1-2 ounces of vinegar. I had a pan barely larger in diameter than the length of the knife, and the liquid barely covered the knife when it was laying in the pan. People have cautioned about not laying the knife directly on the bottom of the pan so it doesn't get too hot from the heat source so I actually used my old camping pots made for a camp stove, and put the windscreen pot inside of the outer pot for a second layer. The windscreen pot has big holes in the side so the boiling liquid traveled freely between the 2 pots but there was a double layer of metal under the knife to keep it from burning. You might have to get inventive depending on what you have. A small diameter but taller pot would help, plus using a quart of water and the entire pack of dye. You could loop some string through both ends of the knife and tie to a stick so that the knife would hang a set distance below the rim of the pot and in that way not touch the bottom.