That's what I was talking about above. If you aren't too focused on having alum. pontoons under you, larger deck boats can be a really good option when it comes to bigger water (thinking something like a 22'). Much heavier, potentially just as much room, a LOT more power, and they can get up on top of "chop" pretty easily.
I get the pontoon thing. I've had several over the last 40 years or so, and enjoy them immensely. You do have to realize though, there are limits to that design, and big water is a good place to start when listing them....