Baselining could be interpreted differently even among members of the 80 forum with OCD.
Example; for a cosmetic creampuff lady driven never abused mall cruiser 97 FZJ80 model I picked up a few years ago, my "baselining" included:
New OEM radiator, rubber radiator cushions and brackets, large radiator hoses and clamps, Thermostat (all OEM), and water pump, alternator, idler pulley, AC tensioner pulley, fan clutch, OEM belts, distributor O-ring, oil pump O-ring/gasket, front crank seal, new battery with new terminals/clamp, OEM radiator overflow tank, Denso Iridium TT spark plugs, OEM spark plug wires, distirbutor cap, rotor, PCV valve and hose, breather hose, air intake hose, air filter, fuel filter, #2 knock sensor, pesky heater hose, and #2 bypass hose. Then new gear oil for all the gear boxes, flushed transmission, flushed power steering, flushed brake system, flushed engine oil (LiquiMoly Proline engine flush, yes I did), switched to Mobil 1 synthetic, greased the U-joints and slip yolks and steering knuckles, new tires, along with cleaning and lubing just about everything you can thing of. Still have the complete front axle service to redo, but that had been done by the PO not too long ago.
Just completed a 5000 mile trip with that 80, not one problem.
Edit: I should've mentioned, even though this was a lady driven mall cruiser creampuff it had been neglected and had almost zero service during it's life except for Quickie lube conventional oil changes with generic oil filters and did need a lot of catch-up maintenance. Some of the parts taken off this 80 were saved for spares.
This I think was a good example of what you can run into even with an otherwise clean rust-free 80.
FWIW