I am planning an insane looooooong ride myself.
1000miles or 1600km. Springfield, MO to Charleston, SC.
TAKING ALL BETS. but you gota specify the city in which I will break down in and the problem.
As far as seats if you want a confy one the 80s gs's had a seat that was 4"s thick and I made a 1500 mile one stop for sleep jurny no prob. BTW I riped that 20# seat off after I got back home and put on a 1*6 board and leather "custom" lite wheight seat.