In terms of leaving Sheridan's voice as it is, and just editting for puncation, spelling, hyphens...
I know I am not informed enough to deduce the nuances of why Sheridan writes his sentences a certain way...and so have to hold my editorial desires in check.
If Sheridan were here, I'd have a conversation with him about his overuse of "however". I think he's taken enough writing courses, to see that he uses 'however' too thickly...I bet he doesn't even realize it. But I'll curb my keyboard, and remember it's Sheridan's work, not mine.
I did add some commas to his howevers, though
Example. Sheridan loves this particular form of complex sentence.
He was a West Point Graduate, and in command of the advisory team; however, the only contact Grecco had with the colonel was at his Saturday evening briefings when Vince gave his weekly progress report.
I'm working on the cover (front/spine/back) right now. I think the image he had in 2008 is essential. Apparently a friend drew it for him, I think. I'm going to use a different font for title/author though, since I don't think Sheridan made an informed choice on the front cover font he used then. Also, I have to abbreviate the back cover text to make it fit in the smaller 6x9 format.
I've decided I'm going to put the one-page Rimbaud poem in as an unlabelled foreword. I think it adds texture to the title, for those who might not be aware that the title is well known in literature.
I really wanted to make the overall background color for the cover a dark red, but because of the front image, I think it works best with a vanilla white background.
I'm still in awe at the time Sheridan apparently invested in this. Some of the writing is a little stereotypical "vietnam" macho male genre stuff. But, no matter what, it's an historical record, I think, of what Sheridan experienced and how he processed it.
I love how Sheridan writes with "dialog". He has a real ear for using dialog to tell the story, not just third person sentences.