What tools and spare parts in your a-body

I agree with trailbeast. Run as much durable and common as possible. Hei, reasonably modern alternator, stuff you could replace at any parts store or junkyard.

I like a small but complete wrench set, makita impact and drill with stepper and basic drill bits, proper light gauge socket set, gallon of atf, gallon of coolant, quart of rye, 4 spark plugs, set of belts (usually the ones I pulled due to age) screw jack from a 2000s ford ranger, small voltage tester, couple 10 foot 14 gauge wires. Butane soldering iron and bit of solder. Fuses, bulbs, bow and arrows. Jumper cables, flares, MREs, gallon of drinking water, light gauge work gloves, blanket, safety goggles, change of clothes, goop, shop towels. Ignition module, voltage regulator and a fuel filter.

What, no portable shower? :D