The BladeForums.com 2024 Traditional Knife is available! Price is $250 ea (shipped within CONUS).
Order here: https://www.bladeforums.com/help/2024-traditional/
Going by memory here, been awhile and I have taken apart so many knives.
That said, I believe the stop pin is just a shouldered pin that sits in the handle holes and is retained by the other screws holding the handle together.