If it is in avg condition that is not bad for a sub 150k LC. I am guessing rust is a factor to look for. If it is a one owner and it spent most of its life in Southern VA then you have a winner. If it spent its life in DC or Baltimore then maybe not. Important to know the history.
Apart from the normal used car items such as paint condition, dents, original glass, seat/interior condition, tire life, oil leaks, you need to look for a few other Cruiser specific items:
#1) rust, body rust at the rear quarters behind the plastic rear bumper cover, fuel tank cover rust, exhaust system condition, rocker panel rust, rear gate underside rust, excessive frame weld rusting. NOTE: they all rust in normal 4 season climates, it is just when you catch it and if you mitigate it properly.
#2) Service History: If this is a one owner that should be easy. Timing belt and water pump should have been down by now.
#3) AC check it on a warm day to ensure it blows cold
#4.) is the plastic engine cover on it? That could be a sign of major work/shade tree fiddling.
#5) Does it shift into 4 High or Low
#6) Brakes, check to see if the discs are in good shape with out gauging
#7) Lift? Best if it is stock suspension.
A 2000 should be a pretty simple basic rig with out NAV and without rear AC units (I think)
If it is a friend, see if he will let you (not him) take it to your local Toyota store or at least Toyota specialist. $150 for an inspection may provide a wealth of information and even Toyota warranty and service history information. Don't bring him, if it is a good one the tech and service writers will try to buy it or at minimum drive up the price.
$6,800 is cheap for a low rust, original, one owner, serviced LC, but could be high for a multiple owner, modified rust bucket project rig.
"Each used car is an individual" How lucky are you with judging people/cars based upon examination and research.
