Sorry for the lapse in communications, I was blocked from updating this thread more as a new user, but since fixed (thanks @apurva!).
Yes, Ch0-5 are in PB, along with the author bios.
Note that Ch4 is awaiting an image caption (yes, I do think it is a best practice to indicate the title, author, source and copyright status of images in the public domain, even though not required. @apurva may have other thoughts.
Note Ch5 is awaiting proper equations pending input from the author. Happy to help there when/if the time comes, with the caveat is my latex is rusty so if the author or someone else can supply equations in one of the workable formats, that would be best. Note also that there are references to equations within the surrounding text that might also benefit from some other treatment than they have now.
Yes @metatechne the indents in references lists have to be removed manually in PB anyways, so removing them in Google Docs is probably best.