The best bet is to
sign up for premium membership here on this forum, then you can post a want to buy ad in the parts section. I like to buy original good condition used parts when I can, and the members here are great about outfitting me with some pretty great stuff. As a regular non-premium member, keep your eyes open in
the parts section of the forum for somebody parting a truck or for somebody listing various parts and they may have one of those center links.