You are right, I cannot find a prerequisite for this ride. I started with MTF group & they required it, not IBA, my mistake. Your quote just means you can also do those rides while doing this one. JMO but truck driving has no direct correlation to bike riding this type of distance. You need long distance riding experience (ie time in saddle) . I prepared a lot & rode about 6k in the months just before my attempt. I ws so prepared it was fairly easy & have had a rougher time on a SS. If you've never done a SS you might want to try one before you commit to this type of time/money to see if it's for you.