UncleGeorge,
I would venture to guess that most of us have to order our leather. I happen to use Goliger Leather because I can trust them to sort and find what I'm looking for. I think many suppliers do this successfully. I recomend discussing this with someone you know and find out where they get their leather and who to talk to there about it. I would think that Siegels, Sheridan Leather Outfitters, Goliger, Springfield Leather...would all be great places to start and I know there are several others as well. Most of these suppliers have no minimums and are accustomed to helping their customers with single side orders. Several offer leather from more than one tanner, such as Herman Oak and Wickett & Craig. Once you have a good contact, buying leather becomes much easier.
Just my opinion....
Bobby