It looks like their Baton Rouge LA store might be closer to you than Nashville, plus it seems they now have an online store. Of course, that takes away some of the "in person" relationship of dealing with a local vendor. The Nashville store is only 60-something miles from my home, and I've been dealing with some of their counter guys for well over 30 years. You might also need a business name to get the best price quotes.
http://www.enginepartscenter.com/about.htmlJerry