VK Jehannum has a blog somewhere that can be found by Google use. What you’d be looking for is Qlippoth initiation.
Thomas Karlsson can be found on Facebook and heads the Ordo Dragon Rouge, Order of the Red Dragon. He has a book called Qabalah, Qlippoth and Goetic Magic. It’s a terrific book and he just released a new edition.
Dion Fortune would not approve of the LHP, but in her order Servants of the Light, she had a magazine that was sent to members and one issue or a few had light shed on Pathworkings.
There were important pieces of information the Adept would memorize:
The path and it’s intelligence (and their meanings) from the Sepher Yetzirah.
The qlippas or sephiras at each end of the path, and information about each sphere.
The Astrological, planetary, or element associated with the path.
The name and title expanded of the path.
Finally, Lord Mantacore aka Nick Farrell, has a blog, a substack page and a Facebook account. He also has a couple handfuls of books he’s authored. Magickal Imagination and the Shem Grimoire are two examples.
I can look around a bit tonight or late tomorrow for more information.
My bet is there is a page on the internet that has what you’re looking to find.
Behemoth-X also has a Facebook account as well as VK Jehannum, Rufus Opus, Magister Ram Diaz also, as again, Nick Farrell and Thomas Karlsson. Hit em up 
Oh … On the main point, yes, you want to exhaust Pathworking each path before tackling the next sphere.
So on the well known kircher tree called the Tree of Life, youve mastered the previous sphere, after you get initiated into the next sphere. So by that, you are allowed to travel those paths that are open tojyou as the sphere you just got initiated into.
If you try to traverse other paths, you’ll get told no way Jose, being kicked to the curb.
So Malkuth to Yesod, only The World is open to you. As you graduate Yesod and are initiated into Hod, Judgement and The Sun are now open to you. As you graduate Hod and get initiated into Netzach, The Moon, The Star and The Tower are now open.