Look at the work, not the price. I'm your guy if you are looking for a a professional wordsmith; native UK English speaker; and have a 159 IQ allowing me to quickly grasp new topics and do research.
I've written, published and blogged during a lifelong career in media, from which I have taken early retirement due to my being in the "very high risk" for Covid group.
I have left only left my apartment, where I live alone, three times since February. I mention this merely to illustrate that I have time on my hands to undertake an 80 blog project of 200k words.
If you need peanuts out of a word-factory, hire a monkey. READ ON ONLY if you want a top-flight job, professionally executed, for yourself or a client, I'm your guy!
As far as reliability is concerned, I finished eight blogs for an Australian publisher yesterday. See what they say on my profile. They have given me 8 more to do.
I submitted another large project today - writing 50-word (exactly) profile of 1,000 businesses 50k words in all. They offered me another thousand, but I turned them down as the rate is stupid.
And I have never sent any client any document that did not pass the plagiarism test!
I have no idea what your project involves, and so I am, obviously, shooting in the dark on my bid. I AM NOT CHEAP, at all, but I'm the best! I've created milestones - but we would agree on them - so that you don't have to pay for the quality until you see it.