I'll give you an "A" for your persistence. I'm afraid your complaints will continue to fall on deaf ears on a U.S.-based board. You may not like it, but what we do works pretty good for us.
I'll be surprised if you find any photos of fullblood Italian Chis at American shows. There used to be some but they certainly predated digitial photography and scanners. Somebody might dig one out for you, but I doubt it.
I think there are still a small handfull of breeders, but not many and nobody shows them that I know of. You might try calling the American Chianina Association if you really care for information on them.
I'm curious as to why someone in Austrailia even cares what we do in the U.S. show industry. Unless you wanted to have a jumping contest between kangaroos and fullblood Chis. Chi's could outjump any any animal I've ever seen. Although they could usually walk right over lots and fences of normal height.