The BladeForums.com 2024 Traditional Knife is ready to order! See this thread for details:
https://www.bladeforums.com/threads/bladeforums-2024-traditional-knife.2003187/
Price is $300 ea (shipped within CONUS). If you live outside the US, I will contact you after your order for extra shipping charges.
Order here: https://www.bladeforums.com/help/2024-traditional/ - Order as many as you like, we have plenty.
are you looking for something already beveled and heat treated to put a handle on?
I have a couple in 440c tucked back. Shoot me a PM or email if interested.
Dictum in Germany sells raw blanks and finished blades.
https://www.dictum.com/en/knives/blades-blade-blanks/for-japanese-kitchen-knives
Several of the knife suppliers sell stick tang finished Japanese blades. IIRC, a few sell stick tang blanks. Of course, you could have them water jet cut by someone.