Tristan – Augustus Caesar’s World only briefly deals with the Julius Caesar/Mark Antony stuff in the beginning of the book since it deals with Julius’ nephew, Augustus. It is a great read – I learned a lot from it, so if it is a choice between them, use the ACW for Roman history. (CM used the Lives more to teach character by showing how we live and that the choices we make affect others for both good and bad. The comparisons are great for this.)
We are reading through the Caesar and Antony lives now. They are interesting in themselves and you can get them online. (I haven’t done Alexander the Great.) The ones that Anne White uses from AO is the Dryden-Hough translation which is available free online. We have used her guides as well and to be honest, I really don’t think that you will need a guide for these. Since you read the KJV of the Bible, the language won’t be that different for her, so if you have a dictionary, you should be fine. I actually printed out the 2 Lives on my computer and each was less than 20 pages. If she read a few pages each day, it wouldn’t take that long to do both Lives.
As a side note – we have TOTALLY enjoyed listening to the Arkangel production of Shakespeare’s Julius Caesar. Highly recommend that you listen/read along. SO cool! 😉 Even my littles listened in (not required, though) and seemed to enjoy it. A lot of Shakespeare’s ideas and material came from reading North’s translation of Plutarch.