Assistance Needed to find 78 Elky

Hi.. I'm new to this site and it seems to be informative. I am looking for someone or perhaps a resource to help me locate a 1978 El Camino.. Black Knight preferred as I am a previous owner of one. However, they are somewhat hard to find so I may have to settle for a plain Elky. I would like to find one with a 350 in it.. I have been finding a few here and there on Craigslist, Ebay, etc., but not in too good of shape and they want an arm and a leg. If anyone knows of someone please inform me. Thank you in advance. Tony