The BladeForums.com 2024 Traditional Knife is available! Price is $250 ea (shipped within CONUS).
Order here: https://www.bladeforums.com/help/2024-traditional/
Yes it needs to be tempered. As is, it will be very brittle and prone to breaking when you use it. I personally would prefer a high carbon steel to just be normalized than hardened for an anvil tool due to the reduced chance of it breaking off and maybe a piece hitting me somewhere tender that is about anvil height.