Tour site lists turn by turn, course is unmarked and unsupported. I suck at directions. Midwestern gravel & dirt roads.
I have a Garmin FR 610 but this will take longer than my battery life. So I am just going to use a cycling computer. I don't have a smart phone.
So, maps? How detailed do you make them? Do you basically print out the text turn by turn and sections of satellite maps? We have small town checkpoints along the way, so I wouldn't think I would get horribly lost but then again, my family couldn't find the Sears Tower in Chicago(yes, really!)
I don't know how often I will do tours such as this, maybe twice a year? I can train on marked trails and sides of a local highway, so I don't think I want to invest in a Garmin for my bike at this point. Maybe later, I did with running once I got more involved with it.