Bob- I've seen pics of that factory option, but the seats didn't seem very conducive to adults... Pretty small, right?
Check this out! Saw it on a 21' Cobia yesterday and snapped a picture. If I could find something like this, that would be sweet. Option 2 would be having a welding shop make one, but I'm guessing a custom job would be pricey. [EDITED to add: I got a quote from Action Welding in Cape Coral... $645 to make one of these puppies, including the side rails. ]