Bob,

Check for debris in the lower front fenders, at the seatbelt mounting points in the rear fender wells and the front floor boards...these are the typical rust areas that I've seen. Second, some of the small interior bits are specific to the 89/90 model SWBs, make sure the interior is complete. Third, go look at it, not expecting to bring it home, and take lots of hi-res large format digital pictures for our vicarious review here.

Russell

1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya