I see some safety issues that should be taken care of soon:
1. Driver's side mirror that mounts to the cowl - available new from many vendors
2. Rear view mirror glass
3. Master brake cylinder switch to dual reservoir
4. Passenger side rear reflector - found mine on eBay for cheap
5. Missing defroster vents and heater fan switch - may not be urgent since you're in a warmer climate or run with windshield down
6. Wipers
7. Clips for your wiper wires - I might have some
Other cosmetic things:
8. Windshield hold down latches that mount on the hood - Cityracer sells a nice set
9. The white 50/50 hood hinges may be original, look for a FJ25 cast in the hinge followed by a part number
10. Tailgate hinge - I might have one
11. Bugcatcher window gaskets - Cruiser Outfitters sells them now
12. Bugcatcher knobs - I think Spector sells a black reproduction, I might have an original white set
13. Pyramidal vinyl for your running boards - Some outfit out east still sells it
14. The hole on the passenger side of the cowl may have been a CB antenna. Mine had a similar hole that was letting water in to the glovebox and causing rust.
15. The holes in the dash left of the ignition may have been aftermarket gages or aftermarket wiper fluid pump. Mine had similar holes.
16. The heater control panel has 3 holes, the left is filled by a chrome metal plug and the middle is your fan speed control knob.
Some of these items I'm sure you were aware of, simply listed what I saw. My truck is 22012, they might have been on the assembly line together.
All in all a very cool truck! Lucky to have it.