Hi Joe,
Welcome to Stovebolt - the bumper ends are reproduced and available through several vendors like Jim Carter and Classic Parts. They are okay and look like the originals - spendy - about $650. The steel bumper center and end pieces are being reproduced in fiberglass, but not steel that I know of - same vendors carry those. Ebay sometimes turns up some used original stuff and I watch that pretty often. I just sold a pair of repop bumper ends on Ebay when I had my originals re-worked and even used I sold them for $400. You might also try the Classic Chevy Cameo Club - Dale Mayeaux at cameotruckclub.com. They advertise parts in their quarterly newsletter. I'll pass along anything else I can find or think of. Again, welcome to Stovebolt. Dale