Three points....
1 - OK, I can forgive you for using an Apple. It was the 80s, after all.
2 - If you're going to wind up in a station wagon, I'll talk to Lynn about selling you her XC70. Might as well do it in style.
3 - "it will probably need to be revised, cut apart, and moved around to become a coherent well-ordered book."
I spent 3 years doing that to my novel.
But then, the real fun in writing computer programs was in troubleshooting them when they didn't work. And they never worked at first.
Really, you have one hell of a story to tell. Don't let anything get in the way of it.