This one probably ought to go in the general folder. Don't think it makes much difference if the bike is Honda or repop. If you like, I'll move it and leave a redirect here. IMO, you've hit upon a great topic.
The undisputed one-way champ has to be our own chuckklr04. As I recall, he made it most of the 1700 miles from his home in LA to Sturgis before his motor gave out. Second place probably belongs to Jared, a.k.a. fatcaaat. He'll have to provide the details.
I've done a number of 150 - 250 mile afternoon rides. Best guess is that home, or at least home base at the time, was never more than 80 miles away. We were ~600 miles from home last week and covered about that many miles in 6 days riding around the Keweenaw, but I don't think we ever got more than about 60 miles away from where we were staying. Road miles fly by, offroad is another ballgame. 30 miles into the trails, midway between "no" and "where" feels more like 120 miles. That same distance, on-road, feels like barely enough to get the motor fully warmed-up. Distance is, in part, a state of mind. Guess it largely depends on how long it would take to get home if the bike were to become unrideable.
BTW... I see that you've sourced the same model auxilliary fuel tank, my compliments on your selection.:24: