Help me.... name a part of a boat.. please!

[pnc]

I just bought this boat a 16' Tara 1985. My first boat and really a project boat. I am looking for 1. a place to buy back to back (Lounge) seats 2. what the things are called above the seats on the front of the boat... and where I can get them ... like the headrest things..... and what about the front seat cushions... where can I get them! PLEASE HELP i would like to start my project right away!