chris,
i totally understand it is not too difficult, but it is somewhat difficult, it would take some time and a lot of effort for someone or some people to put it all together, although if a shop was ambitious and had a lot of dive master candidates it might be able to pull something together, since as i remember making a map was one of the requirements. In fact I will look for mine, and if I find it you can have it (although no guarantee that I still have it)
as for the liability issue, well haha i am in law school so we think of anything we can sue people for. I especially think of sites like Lanai Lookout on Oahu. Even when I tell folks about that site on the board I usually throw a disclaimer that folks shouldn't do that dive, because it is very dangerous.
and as for the changes I really was stretching for that one. I really can't think of anything else, except that no one has really wanted to take the challenge on.