Some context:
I bought and read TFTNA from cover to cover.
Im 4-5 weeks into a transition period that predated me reading the book and now I’m motivated to follow this process.
I ordered a Polar H10 HRM to do my fitness tests in the next week.
Im going to use training peaks and the HRM to track my workouts and performance over time.
My goal is to train properly using an annual plan aligned with mountaineering season 2021 to do Mt. Rainier and Mt. Shasta and other non technical routes of 14ers.

I have read extensively on these forums and currently I am confused about which training plans to buy so I can automate the tracking in training peaks. Any help on these types of questions would be much appreciated:

Is the 8 week training program just the first 8 weeks of the base period?
Is the 16 week the full term of the base period? (it seems like the goals in the description are for more intense objectives than what I have planned for next year)
Does it makes sense to buy all the plans and just use them sequentially since I have 11-12 months worth of training?

Thanks for any help and thanks for providing such amazing resources and content!