Swivel Driver's Seat Upgrade

I have a 2003 MB Sports 220V. I would like to upgrade the seat to a swivel. The stock seat sits on a slider adjusting mount that bolts to a fiberglass base that screws to the floor. Does anyone know what swivel mount the newer boats use?

I had an old 2000 MB B52 and thought about doing this. The thing to consider is you would most likely have to replace the seat for one with more of a straight back on it otherwise it would hit the gunnel as you go to turn. Or, you'd have to move the seat away from the side of the boat but your chair would no longer be in line with the steering wheel. As far as a the swivel I'm sure you could find something online to work.