It’s such a great game. I will say though, the woman’s lot DLC that gets started when you ask Theresa about the story is a bit of a slog… it’s an alright story but I’d definitely make a save before starting it if you’re not a fan of its flow and tediousness lol
If you can get them into a digital format I’ve personally used eleven labs to clone voices and make narrations for missions I created for a video game. I tried using different open source projects and getting it to run on my own with no avail, but 11 labs has been solid (it is unfortunately paid software of like $5/10 bucks a month though)