I always try to get a picture with a person next to the calf. That will give you some idea of scale and proportion. I have bought some midgets and some monsters from photos that looked great but when compared to their contemporaries they didn't measure up. If you can, have a friend that lives close run over and take a quick look. Pictures and videos are a snapshot in time and tell the story at that moment, not the whole story. Also, I like to see a persons place. Champions tend to come from a place that is managed like a champion.
Not getting registration papers is a whole other animal. If I don't get promised papers I tend to make a hobby out of you. Calling twice a day tends to get results and asking everyone they know- "Hey, have you seen "Joe". I have been trying to get a hold of him and wanted to be sure he is OK. Tell him to call me if you see him."