I would recommend to get the timing belt, water pump, seals and idler/pulley's replaced.

Change your oil/fuel filters and transmission/differential/engine fluids.

Check your brakes, balljoints and linkages.

Also check your wheel bearings. Those are notorious for failing if the brakes have been heating up/calipers seized.

Where are you located ?

If you're in the lower mainland, I would recommend you take your Pajero to CVI shell in richmond.

The two guys are from the phillipines and are Pajero/Delica specialists.

They know these vehicles inside and out.

$300 will get you a Pajero/Delica 'tune'. Set timing, injection, supersonic injector clean and adjustment.

Jesse