I have about 938,208 words published, but the vast majority of it is in "rough draft". I've been slowly going back and fixing stuff for a while now. Originally was just a hack ghostwriter and because most of my stuff was going to be rewritten anyway, I was always rather lax on the quality. If you want, check out my sig file. I'd want to start on HKN. If you are interested, I'll be more than happy to explain the details of what corrections I wanted to make in formatting and the overall level of detail to "fix" it. The plot is fine, it's the quality that needs improvement.
Two and a half years of publishing something every 3 days does improve your skills, so when I look back to my first chapters, I cringe.
Book one of HKN is about 286k. If you are interested, I'd be happy to have you listed as Editor. HKN is sex free, but heavy on gore/violence. The rest of my stories contain sex, but it isn't detailed. I find sex scenes boring, but often find it important to include in the plot, so the rest of the stories are R-rated. Definitely not the focus.
Anyrate, DM me if you are interested.
EDIT: Ya know what? If you do clean up HKN from stem to stern, and I can agree the rewrite is good, if you are so inclined as to want to publish it somewhere on a self-publishing platform you can point to it later and say, "See here on Scribble Hub? That's the original. Over here on this self-publishing platform is the finished product. See what I can do with schlock like this? Imagine what I can do for you." I'd be fine with that.
I have no intentions of self-publishing anything for profit, but I understand you want to do this professionally and want to build up your portfolio. So, if it'll help you out, you'd have to handle the paperwork, but that might be a good experience for you as well. 50/50 on any money you can squeeze out of it.