High lift jack and a bottle jack. Head lamp. Couple of empty anti-freeze or windshield wiper fluid jugs. I also carry my DeWalt impact gun, make tire changes easier. Also one of those electric drill bit sets, brother-in-law ran into an issue where he needed a square bit to fix something and he had every type of screwdriver, but that.
Shovel and an axe.
May consider having your brakes checked before you travel as well Jeff.
A pair of cheap lightweight coveralls can be handy, use ‘em, throw them in a bag and put your travel clothes back on.
Safe travels!