satren3845 if you don't have it working in half a year and aren't sure if it'll happen, pls post what you have or send it to me directly, I maaaaay be able to work on it.
Also, didn't read all of the conversation, just skimmed, so not sure if you have tried it, but using GPTs for fixing kerning is not too shabby nowadays, you can just give it a bunch of kerning examples from existing fonts off the internet and maybe write a heuristic function it can use to determine if some rendered text would induce a need for eyebleach. No need for a full on MCP setup on your local, you can use something like github copilot (though of course this has the expectable caveats like said data being tied to the used github acct and going straight to microshit, and need for $$ unless you can do something like get your mitts on a .edu email for the free student thing).
If you do want to run some model on your local I have some examples I can share (in DMs), or tbh you can get hundreds of better examples off of some random indian's github.
Fair warning my involvement w F95 is on and off so don't be surprised if I dissappear for a month, also pls ping reply if you do