If it truely has been maintained in the fashion that the ad says, I dont think it would have many/any problems at all. Those sort of issues come up with vehicles that just plain sit. No starting, no fluid changes, no driving what so ever. The ad claims it was fairly regularily started and maintained...so I dont think it would give you too much trouble mechanically. Ide venture to say there are people on this board that dont regularily lube chassis parts on their dd jeeps. Again, that all depends on the validity of the description.
The one thing I think would go downhill fast is paint. Unless you garage kept it of course. But leaving it out in the sun, after being garage kept all its life, would wreak havoc on the finish.
I recently experienced this with a 86 Trans AM. 30k miles garage kept. Perfect all over...until I had to park it outside every day. Then the paint went bye byes haha. And that was bc/cc paint.
If this was a two door Ide be all over this...
J.