Geoff,
A couple of things:
-Bracken's book is for beginners, ergo, it's a "Primer". It's a nice starting point where all the info is in one place. I'm sure there are many other authors out there too.
-For PA,? the polar scopes are giving way to the PoleMaster cameras which will do the same thing electronically with easy step by step software. There is an adapter that fits it into the polar finder threads. Or you can use your guide scope in conjunction with the SharpCap PA routine, which many like since its cheap software and does not require purchase of a another camera. There is also an iPhone app called PS Align which will show the relationship of Polaris to the true NCP from your location.
-If you are are Mac user (I am not) you can set up a Windows virtual machine that will use ASCOM drivers. Dylan O'Donnell has a YouTube video about this on his Star Stuff YouTube channel. And then there is the ALPACA software that serves in place of, or connects to ASCOM from Macs (sorry never used it). A guy named Bob Denny is one of the architects of that software and I'm sure you'll be able to find him online.
Good luck. Sounds like you are starting with a nice mount which is really the one a the best foundations for any AP setup.
Good luck!
John