I myself have only been to maybe 3 model shows. I have never seen anything built similar to this on the tables. I do remember seeing the one built by Doc(?) (Marty should be able to correct me if I'm wrong). I believe Marty showed pictures of the build here quite a while back. I believe it was called Lunatic Fringe. That is an awesome build! Anyhow.....

This is one cool rig!

Here's another view of the rig (from Marty's album).