Some food for thought...
I equate survival on a motorcycle to alertness and situational awareness. Long trips tend to dull both. And, when you add distractions such as reminiscing, worry, and grief, the time spent with issues necessary for road survival diminish.
You'll have to assess your own mental attitude. But, I would expect that as you get nearer your goal, focusing on the job of driving will become more difficult, and you become more vulnerable.
You could rely on luck. But, when luck fails, it's your skin and bones that will pay the price. Bumpers and fenders of other vehicles are less than forgiving. It will only take one car on an otherwise deserted road to cause a total reassessment of your priorities.
If you are going to use the trip for "soul searching", which is a plenty good idea, choose a transportation method that doesn't rely so much on mental focus to ensure your own well being.
Air travel won't give you the alone-time or atmosphere for self meditation. Neither will most forms of public transport.
I find driving a car to be less intense and demanding than MC operation. Minor judgement lapses, usually only bend up bits of metal that you can easily walk away from, especially if it is a rental car.
Consider renting a car for the trip. You'll get the time for reflection, minimize your own risk, and can drive for longer stints with less fatigue. Get the insurance, if there is a break down or mishap, it's someone else's worry.
However, if your goal is to have a motorcycle touring adventure to divest your mind of thoughts about Grandma, the SOHC4 should do it!
Best of luck!