Looks like Dynacom actually did it and produced the 67/68 FB Body....
http://cgi.ebay.com/ebaymotors/ws/e...l?ViewItem&item=140139076993&fromMakeTrack=true&ssPageName=VIP:watchlink:top:us
http://cgi.ebay.com/ebaymotors/ws/e...l?ViewItem&item=140139076993&fromMakeTrack=true&ssPageName=VIP:watchlink:top:us