Another thing to remember is this:
This machine polishing is not rocket science.
I know that with all the head-spinning info and opinions on here, it may seem to be at times, but it really is not.
With your machine/product choices, you already have a head-start from where I was about 6 years ago as a noob.
Watch Mike's vids, read his books, ask the AGO forum, etc. about certain basic processes, and then just go to town on your car/truck.
If you have ever used a power tool, you will quickly find how easy using the polisher is in the first 3 minutes.
Certain techniques/preferences/product choices will come in time, but to start just remember this: HAVE FUN!!
If this hobby isn't fun, then what's the point?