Thses are my recommendations...
buy a 91 - 96
wait for the HO...(91 and newer) it has wayy more snap
higher miles is fine if it' been looked after
buy a laredo if you can (more options and nicer interier)
chrome door handles are best as they don get rust around them
91 and new has no vacumm pod on th front diff.
91 - 96 will have a high pinion front diff
5 spd will most likely have the np231 (it a good t-case)
auto will likely have the np242 (also a good t-case)
90 and older 5 spds have the crappy peugot tranny (91 + has the ax15)
Look for rust in these common areas:
- lower door panels
- rear lower rockers (behind rear wheels)
- around the door handles
- under the front fender flares
Just for reference, I sold this one (1991 Laredo) with 320,000 kms for $7000 3 years ago. It was in great running order with no rust.