Engine upper cleaner, oil cleaner before removing engine.
Full service; timing items, oil pump, water pump, thermostat.
Remove, ultrasonic clean and flow test injectors.
Check valve clearnace.
Remove / clean manifolds.
Replace ignition items, distributor, rotor, leads, spark plugs.
Slight advance of timing.
Preference is Toyota red coolant.
Change gearbox oil.
Change brake and clutch fluid.
Inspect shifter cables.
That’s kinda how I would approach it.