Yeah, take advantage of annealing. I was trying to stear him away from forging, you know..pounding to shape, which can weaken the metal, unless you do the folding and rebonding that the Japanese did. Even 'drawing' I believe would weaken the metal. Working metal hardens it, that's why you gotta anneal it to begin with, it's been worked at the steel mill. It's a matter of how you treat the metal that reorganizes the metal molecules within it. Pounding disperses the molecules in a more disorganized fashion.. Usually stock has been extruded, then hardened by cooling, the molecules run along the length of the stock.
Also, the more you know about the stock the better, because it is more than just carbon content that gives steel its strength and durability, chromium content for example.
For files, you can get them cheap from industry. Here, it's Boeing Surplus that has buckets of them, still with lots of tooth, and they are hard, with a lot of life in them.