The front bumper guard looks sick in the last picture.
Not sure if the diff may need to be rebuilt just yet, I've had personal experience with a 4WD element where the car was making a nasty whining noise at 60K miles. The diff. fluid was changed and the noise got softer until it eventually went away and never came back. Car is now at 220K miles.
The car looks like it would clean up well with a good paint/ headlight polish and some buffing of the plastic panels. How is the interior of the car?
-Aaron