Well I hit the mother of all seat finders. After chasing my tail going from junk yard to junk yard I found an online "all" junkyard search engine. Plug in the year range and make/model of car and BAM it shows who has it. Car-Part.com--Used Auto Parts Market
Been using that for quite a bit! Don't forget the "-" in the middle as I have some memories that the other site was not so good... Then sort by distance or price and bingo - you can see a ton of seats for $50 and the same for $700. I bought a perfect Camry transmission at 19K miles for $375 while others wanted as much as $1,200 on the same list... I have not had good luck with trying to mass-email thru this list. Calling individual junk yards of the search results seems to work the best.