You have ALL the right ideas. It is an exciting place to be. You already have a pretty good plan in place. Training/riding with a power meter is a great way to remove a lot of the variables so you can more accurately track where you are. Getting where you want to be is exciting, fun and frustrating. You probably already know the area but if you ever need some good training roads with climbing let me know. There are a lot of options starting with easier grades.
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Ride your Ride!!