A few mouse-clicks and google searches for "US-20" produced a link to a memoirish travelouge of the very road we'll be traveling by author Mac Nelson. A few mouse-clicks and a few days later, the book Twenty West: The Great Road Across America was in my possession. If the 3,300-mile road can provide inspiration for a 330-page book, then...well...I, too, am inspired.
I'll let you know how it reads. Or, check it out for yourself on Amazon.