First, this is one of my not really a question threads, just something that comes up when living a car free lifestyle.
For those of us who live in the sticks, there are no train or bus options. So to get a mere 80 miles over to the next city can be a little problematic.
Since this is not touring, just getting to a place on the best roads available is the goal.
Minimal kit, just a change of clothes for the party I am attending, will wear the same thing on the return the next day.
My options include several bridges that are NOT bike friendly, loads of roads with virtually no shoulder and those damn rumble strips, lots of rolling hills. Some are less problematic than others, but significantly longer, while still having ridability issues. For what its worth, I live and will be riding through the Ozarks.
Bike choices include fast road bike with 23mm tires, pavements only, or a slightly heavier road bike with 32mm tires that I can take on rural farm roads, in theory cutting some miles off the day. With two 90+ mile days the bike has to be a faster one, particularly as the days get shorter. So my utility rides are not really an option.
Plan on taking a minimal camping kit, just bare bones survival emergency insulated bivy and tarp. You never know.
This is an thing that comes up for me a bit, and I have never really read it on the LCF forums. Edit to add, I mean that most of the threads involve urban situations. Not really the issues that come up when you live in an area that's really out of the way.