Here is a pic of the real ring used Unified belt one of my friends owns. He spent a pretty penny on the custom lucite display case for it.
In my opinion, I wouldn't get the belt signed on the front as it makes the belt look bad. Signing it on the back is fine, but if you want to display it you will not see the autograph.
The wooden belt boards should be fine. The Fig Inc belts have a clear coating on them to protect them. All you need to do is wipe it down with a damp cloth every few weeks and it should be fine.