Not super familiar but it seems to be technically possible.

https://github.com/Ashish-Patnaik/kokoclone

Generate audio with the voice and your first tool and use this to clone it into kokoro.

The pth/pt extension bit isn’t the problem. Those are PyTorch extensions and they’re synonymous like jpeg/jpg.

That's great, thank you :-)

With something like this I can even try to make a more accurate voice than the one I already have, and tailor it to my liking!