Hey congrats to your wife! That's awesome.
BTW, if you're interested Peter Bowerman self-published several books, one of which is how to self-publish, with form press releases, etc., and guidance on how to market your book, among other things. It can be found at
www.wellfedsp.com.
If you're interested, I have an affiliate link you can use. But no pressure - the non-affiliate link to the book (or eBook) is up there.