Once you get that far it probably won't be needed BUT, I would look at the oiling system in the FSM.
Follow the oil flow and perhaps put air pressure to it (you'd have to decide where), just so, IF there's crap, it flushed down and out (preferably to the pan) vs pushed farther up into the crankshaft/valves etc.
I believe there's an oil passage thu the main transmission clutch shaft and obviously the crankshaft.
Also, if not known, the oil pump runs off a chain at the rear of the clutch basket itself, farther down(the water pump runs off that). Point being, I wouldn't crank up the engine without the basket and chain connected to the pump...
Theoretically anything in the oil stream is in the oil filter. That said, inspecting the pickup, pump, and over pressure valve (don't want it stuck in bypass mode from debris in the seat holding it open) would not be a bad idea. If shop air is available, back flushing by injecting air into the the exterior port where the oil filter resides may push some into the pan. The good news is its aluminum and pretty soft vs steel.