Interesting combination of ideas. I have implemented some similar ideas having to do with WiFi/data/bluetooth connectivity into one app: LeanData. Give it a try, and let me know what you think. Maybe you can put it in the original post if it works well for you.
I would like to highlight a genuine app which saves a lot of battery AutoCon Play store
It will control WiFi, Data, BT while screen goes off and periodically activate them depending of the schedule user sets.
++ It also has ability to kill/freeze/greenify/hibernate selected apps
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