Yea Tin, only problem is they are hard to come by.
In case you haven't seen it, here it is again. I picked it up for $50 from member TMcGovern (thanks buddy ;)).
Has a welded stainless steel frame - that was worth the $50 to me. I fashioned it so I could take it out if I want. Kinda cool cause you can sit it on the dock and have instant dock seating too! Then put back in the boat and motor away for a cruise!