I would like to do the same thing too!
I bought this kit:
https://parts.athayavintage.com/product/aftermarket-24-600-crown-and-tube-dash/
I think I'll have to remove the original tube, drill a 3mm diameter hole, and then re-thread it with a tool like this:
Filiera completa di mandrino. Utile per filettare il foro della cassa per poter montare il tubetto a vite tipo rolex da 3,00mm (ref.600) M3.0 x 0.35 mm
swissforniture.it
I don't know if it will be necessary to use glue.
In any case, let's wait for the opinion of more experienced users...