I ordered a Supernova chuck and cole jaws from the KMS Tools website. It was the best prices I found. That night Bob Gadd called me at home and said they were out of Supernova Chucks, but if it was OK with me, they were going to ship me a Supernova 2 chuck for the same price. What a guy!
The cole jaws included screws that I thought were too long, until I read the instructions: They were for attaching regular jaws on top of the cole jaws. Also included were 8 cheese-head screws--a new term to me. Probably a down-under term. I guess they call a regular pan head screw a cow patty screw.