Good for campfire talk....
Two different mindsets, IMO.
Depends on what types of roads you plan to travel.
I'd put the small bike at a 300ish miler and the big bike at a 500ish miler, highwaywise. Huge difference for long trips.
The small bike will go thru a keyhole trail, and the big bike doesn't like keyholes.
Fuel costs, maintenance needs, etc differ.
Big bike is the express option. Small bike opens other options, but not express.
Endless... Again a mindset.
PM crashmaster, who contemplated similar scenarios and options, and recently rode many miles south. A solid source to tap.