Damn you've made some pretty nifty improvements to the current system in that second post of yours. Have you've had any luck getting a response from the game dev? Honestly if you don't get a response from the official dev you should probably try talking to the mod team. Maybe you can get these changes to the way characters are generated incorporated into the mod. That way at least even if it never becomes part of the vanilla game your improvements will still be available to a wider audience and kept up to date whenever the game updates.
Here's a link to the mod discord.
You must be registered to see the links
I'm sure if you posted what you made over there they'd probably be interested in your work.