Lots of authors I know have a hard time finding an editor because they feel that they want to “know” their editor. This is understandable when you’re entering into a developmental relationship, but copyediting and proofreading are much more technical skills. The best copyeditors and proofreaders I know are freelancers who are hard to find because they’re working for publishing houses, and the only people who have access to them are companies and/or individuals with stables of editors they’ve cultivated over years in the industry. If you find a service (or individual) you trust with access to a stable of editors, be open to being assigned to one. Ask about the individual’s qualifications, and what other books they’ve edited, but let the trial edit be the deciding factor rather than any connection you hoped to have between yourself and your editor.
I have over 18 years of experience writing about, researching, and analyzing complex public policy, historical, political, and international affairs subjects ranging from UN peacekeeping to ancient Rome and my work is regularly published online by a variety of websites. Published in Newsweek, the Modern War Institute at West Point, Mic, The Jerusalem Post, The Jordan Times, and other publications.
As for multitasking, believe it or not, I try to schedule so that I am only working actively on one book at a time. Research keeps showing that “multitasking” is actually less efficient, because of the time lost to leaving behind one task to restart another. (Think of it this way: If you take on two clients at once for work that would take one week each with your full attention, either you can tell both clients the work will be done in three weeks because you’ll be alternating between them, or tell one client it will be done in one week and one that it will be done in two weeks, because you’ll complete one before you start on the other. Which of those makes more sense?) Obviously, with back-and-forth communications, sometimes complete “monotasking” is impossible, but I think it should be considered the ideal.
I’m sorry you feel that way about my participation in the discussion and defending editors of similar background to myself from what I considered unwarranted disparagement. Perhaps the only approach that would have 100% proof against accusations of “trolling” would have been to allow the claims to stand unchallenged, but that did not seem fair to people who come here to get useful information.
I just published my fourth ebook novel recently and I've used Ebook Launch every time with very satisfactory results. They always promptly turn around the cover and manuscript formatting - and as an added bonus, they always promptly and happily answer even the stupidest questions I come up with. Adrian is very easy to work with and Dane has repeatedly come up with cover ideas when I was fairly sure that it couldn't be done.
A place you can post your job and hire freelance editors. With nearly 60,000 editors on the site, however, it can be a daunting project to find the right editor. To narrow down the candidates, you could make a detailed project description with required skills, language competency, and portfolio requirements. This should help eliminate unqualified editors. You can also include a random requirement like “Respond with ‘Hey, Jedi!’” in to find those detail-oriented editors who actually read your entire post and follow directions.
Even if you wrote the book in your free time, this is my day job. The per-project cost many new authors would consider “manageable” would, if broken into an hourly rate, end up paying editors less than minimum wage. They don’t intend to pay what someone could earn making french fries; they just greatly underestimate how much time must be invested in editing.
Moreover, the casual distinction between a (developmental) “editor” and a “copyeditor” can be a bit simplistic, particularly in a self-publication or even vanity-publishing context. A self-published author may barely have the budget to hire one editor, so that editor needs to be able and willing to blur the lines between developmental editing and copyediting. The editor must also be accustomed to working with authors of a variety of strengths and weaknesses, including many whose work would not, in fact, have been accepted by a commercial publishing house in its current form. I have come to take great satisfaction in taking a new or newish author by the hand and helping them find ways of making their work the best it can be. Of necessity, this must include line-by-line correction of grammar and style (often a surprisingly great amount of such correction), but can rarely be limited to that.

In return for the sacrifices you must make in order to self-publish, you will gain total control over the project. In addition, any profits from sales of the book will be yours (not just a royalty percentage as with either a traditional publisher or a vanity press), and in some cases it may be the only way of getting your book into the hands of readers. However, there is no getting around the requirement to get the tasks done one way or another.
Most editors in my genre charge from 002 to 007 per word. That’s for developmental and FLE, (Final line edit) – three rounds in all. The 10,000 fee you mention here would put off anybody from ever hiring an editor. I know few writers who could pay that, which is why Amazon is flooded with poorly written and badly edited books. I would encourage writers to contact other authors in their genre for tips on editors and to cultivate good beta readers.
In fact, Pressfield writes, “Resistance is experienced as fear; the degree of fear equates to the strength of Resistance. Therefore the more fear we feel about a specific enterprise, the more certain we can be that that enterprise is important to us and to the growth of our soul. That’s why we feel so much Resistance. If it meant nothing to us, there’d be no Resistance.”