I know the guy that makes these canes and he is a good guy gojushorei.com/weapons however I don't actually have one of his canes. Also there is Cane Masters but I have no experience with either the people or products. As regards to individual details like finishes they can probably be more specifially helpful. I have no knowledge about any of the other options you mentioned. Hope this helps.
Jikishin kore dojo nari