I just snuck in a bit more reading of the thread. I think the structure you propose is excellent, especially interlacing Mom's log with the chapters. Perhaps you could lead each chapter with the relevant log, if that works with the actual material - like a title page to each chapter... But for now the main thing is, the chapter titles are Great! They all beckon the reader (or me anyway).
I forgot to say, but please put me down for a copy - even if you publish it as a zamisdat, it will get plenty of readers I am sure... (As you can tell, I am still not sure if you already have a publisher)