My off road list is a little OTT TBH however, if your 80 is auto take a set of starter contacts, I actually carry a complete starter and alternator. Assuming cambelt mileage is known, I would put new AC and fan belts on, carry old ones as spares. This way you reduce the chance of a breakage in the first place and know for sure your spares fit. 2 metres of 19mm heater hose, this allows a complete bypass from one side of the engine block to the other if either the front or rear heater systems/pipework spring a leak. Radweld, 2 pack metal putty, tank tape, spare car keys.
Tools, a complete socket set, the proper socket for the aforementioned front wheel bearings, the 4 nuts holding the lower hub bearing that
@fbnss mentioned have been known to loosen however, experience has shown that incorrect fitting procedure is more likely to blame as opposed to being an 80 fault, so it would not hurt to put a torque wrench on them. Usual other hand tools plus a digital multimeter, fuses that suit the 80 plus fuses that may be needed for fitted accessories, decent torch, clear goggles (large grinding type if you can get them), spare bulbs, decent medical kit, making sure you have your own syringes.
I plead guilty to carrying everything bar the kitchen sink.......

might actually have that? I often travel out alone and so far have needed nothing (me and my big mouth), but you can bet if I didn't carry it, it will be needed, I even carry a spare CV and driveshaft flange so waaaay OTT.
As an aside, I keep a 'bail out' rucksack to hand, spare meds/snacks/water/passport/car documents/basic first aid kit/ change of clothes ect, odds and ends that may be needed urgently in case you get caught up in floods or a vehicle fire and need to 'bail' on the quick.
My 'proper' list is comprehensive to say the least but I can see everyones eyes glazing over already so will stop there.
Regards
Dave