I agree that its difficult to sort through the searches sometimes when you get 3 pages of car covers listed by a single seller. But, there are ways to tailor your search to reduce that. You can search only in the "vintage parts" section of Motors, or check the "used" box so it doesn't show new items. And of course you can just search for a specific part. You can also add the year into your search category to set multiple criteria. For example, I use this search for my "generic" saved challenger search
(1970,1971,1972,1973,1974,1970-1974,70-74,70-71,72-74,73-74,70,71,72,73,74) (Challenger,e body)
It still returns about 8,300 items, and a dozen pages of those darned car covers. But if I just check the "used" box, it cuts it to 1,600. Or the vintage category, which puts it around 4,000. Of course, the more you tailor your search, the less likely you are to find miscategorized items.
It can be a pain, but in a lot of cases its still cheaper to find stuff that doesn't need to be purchased new. Especially if there aren't any local swap meets coming up soon.