I just ran across this on Google. There was only one built and it is in Nebraska in a museum in Lexington.
http://images.google.com/imgres?imgurl=http://www.heartlandmuseum.com/db_launcher1.jpg&imgrefurl=http://www.heartlandmuseum.com/album/album1/Museum_Photos/museum_photos_7.html&h=292&w=400&sz=17&hl=en&start=13&tbnid=uJ1rTyyzqtJWsM:&tbnh=91&tbnw=124&prev=/images%3Fq%3DHellfire%2BMissile%26svnum%3D10%26hl%3Den%26lr%3D%26safe%3Doff%26sa%3DG
http://images.google.com/imgres?imgurl=http://www.heartlandmuseum.com/db_launcher1.jpg&imgrefurl=http://www.heartlandmuseum.com/album/album1/Museum_Photos/museum_photos_7.html&h=292&w=400&sz=17&hl=en&start=13&tbnid=uJ1rTyyzqtJWsM:&tbnh=91&tbnw=124&prev=/images%3Fq%3DHellfire%2BMissile%26svnum%3D10%26hl%3Den%26lr%3D%26safe%3Doff%26sa%3DG