i bought a 91 explorer from ebay… was junk, but just for a winter beater for a couple years… price like $ 850, lasted 2-3 years so it did the job.
also bought my 99 durango from a dealer in ohio without checking it out beforehand… brought cash and checked it out briefly before paying, but with a 99.8% positive feedback and over 400 transactions i wasn’t TOO worried. no problems from that one.
if a seller has only an 80-90% positive rating… then i would completely avoid it.