Don't let the naysayers sway you, the 1990-1992 2-door 4Runners are pretty unique.
You know about the 3VZ-FE gotchas. It wouldn't deter me either. The engine suffers from a lot of Internet folklore. Toyota sold millions of them and there are still millions of them bouncing around with owners oblivious to the fact that their engine is a supposed pile of poo.
Check the ball joints, or probably replace them on principle. I would run it into Toyota, this truck should be included in the relay rod recall, which is the long rod that runs between the tie rods and to which the steering box and idler connect. If it is covered (they had some fractured, so AFAIK all 1989-1995 trucks get new ones, my 1991 pickup did at least), you get a new relay rod and a free alignment. They will check the ball joints and tie rods and probably want you to replace them. The lower ball joints do wear out pretty quick.
The idler arm is probably the weakest link of any on the truck. New ones will wear out with wheeling, the Total Chaos ones are major bucks (but the last one you'll ever buy). Going the route of bronze bushings and a truss is probably the best option for value.
Otherwise not much to look at other standard stuff (wheel bearings, clutch, brakes).
I don't remember if the 2 door 4Runner has a two piece rear driveshaft, but if so the carrier bearing on them generally is worn out when they drove off the lot new. So you might have the DS given the once over. New u-joints are never a bad idea and they'll rebalance it.
This vintage truck still had a mechanical speedometer, so you probably will have a bouncy speed needle. That cable is a pain to replace and not cheap, but really pretty minor.
I'd give the power steering pump a good look, open the cap, smell the fluid. Mine has about 250K miles on it and is starting to leak for real. That will be not much fun. But a fluid R&R a couple of years ago helped tremendously to quiet it and slow the leak.