L.A.R.O.P. - At Last!
What I didn't mention, because I was too involved in typing to think deeply about it, was how to plan for page breaks after the fact, the realization that you have to cut your scroll up into sheets for scanning. I suppose I could plan for such breaks and give myself some additional space between paragraphs.
I scanned the sheets with a stack of white printer paper as a backing, it keeps the curly paper flat, and makes the paper's background appear whiter - it's airmail thin, and whatever's behind it will show through somewhat.
Alternatively - this just came to me - I could fashion a template from black craft paper, a 6" wide window of a certain length, and could simply place the template upon the scanner's glass and move the scroll past the window for each section that needs to be scanned. This would keep the scroll intact.
I also thought of letter-writing, and the prospect of folding the scroll (it's the perfect width for small envelopes) accordion style. My dear Aunt in Colorado Springs, who herself has an old upright Underwood, might be amused at receiving such a missive.