Honestly, I think you may be overestimating how much preparation you need to do.
Obviously a little preparation helps so you’re familiar with the format of the test, know the question style
and get your timing right but all these books on it probably aren’t the best use of your money.
Personally, I’d do the 2 practice tests online and the questions offered by the Lawyer Portal, then that should be sufficient.
It’s meant to be a test that you can’t revise for and tests your aptitude.