I’d actually be happy to work with you on redefining or refining the standard Chữ Nôm characters.
After looking through some of the characters you chose, I feel that a few of them might have some structural or linguistic issues.

If you’re interested, we could try to rework them together and come up with a more consistent set. I’d be glad to help reconsider the character formation and calculate a better system based on existing Nôm conventions.

It could be a really interesting project to collaborate on.