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 $250 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.
Dictum has some but there are the shipping costs to overcome,
I even asked Japanesechefsknives.com and they said it was difficult to get a replacement handle
However I got lucky and have 10 coming to me from a source I don't know I'm allowed to name
But as JDM says, you could try Murray Carter
yes w/o VAT, in the top right hand corner there is a country selection and you can choose w/o VAT
...and it said that there are now only like 3 shops in Japan that do that work. There used to be a lot more. I don't know if they have consolidated or if a lot more knives are made in Japan with western style handles these days. They make them on old style machines run by real live people instead of computers, but they appear to be able to crank them out pretty fast.
what I was told in an email -
"Each makers and craftsmen are struggling to find and get the Wa Handles (due
to handle maker's limited production and craftsmen's old average ages).
We apologize for the availability of the wa handles."
I think it is on my home computer, but there is a newer supplier from China. They make a lot of styles and sizes. I never ordered from them, but they were cheap ... $5 each, IIRC. There was a video of them being turned, the horn fitted, and the finishing.
There is also a chef's supplier that carries uniforms, really cheap knife rolls and cases, as well as replacement handles. I'll try and pull them up, too.