Replace lounge seat with something else at helm.

[cecho]

I have a Tiara 2000 Overnighter (20 foot cuddy cabin) that's setup like a ski boat. It has two lounge seats in it. I'd like to replace the "driver's" side lounge seat with something that can fold up to allow standing and sitting tall easily at the helm, but can fold down to be something like a chair. I'm looking for recommendations on what would be good to do. Here's an image of what the layout of my boat is like.