Rubber components, hoses, belts, etc.
Fluids.
Electrical terminals, connectors, etc, corrosion or for being unprotected.
Starter gear and pinion.
Jack and test for play in the rear end differential and U-joints. Listen to differential at ~ 50 mph, let off gas and accelerate, listen for noises, whine, etc.
Check ball joints. Grease everything as spec'd.
Brakes, lights, look for tampering in the electrical distribution box, spare fuses...
SG of battery, charging voltage correct.
Check front wheel bearings.
Check the 4WD system for any issues including U-joints or whatever they used on that vehicle..
Replace PCV valve, check fuel filter, air filter.
Lub door, etc, hinges and any moving parts.
Wiper blades. Replace blinker fluid.
Check shocks for leakage or freedom. Check their bushings and suspension bushings.