Just wanted to say thank you for posting this information.
I am not as far along as you are, but I too started a new player and eschewed any assistance from my main accounts.
I decided to go 100% solo for the challenge ( I do bring along a couple of my own mules ).
It would be great to see this fleshed out as a full-fledged guide.
Every response to the "I'm new, how do I get back into the game?" threads seems to be "Go find a GoV alliance."
Not only is it mindless and boring, but it does absolutely nothing to foster skillful play.
In addition, it may be responsible for the wealth of poorly geared / poorly played characters that are struggling to engage end-game content in a meaningful way.
Following a similar path to the one you outlined above has been a lot of fun, and much closer to the way I leveled my first 75 before the level cap was ever raised.
I would highly recommend it to anyone who wants to actually learn the mechanics and enjoy this game.