Hello (sorry if this is in wrong section), I am thinking about buying an old Nikonos III (or II) to play around with on an upcoming trip, on which I'll be diving/snorkeling. It seems like they're pretty sturdy, as long as they don't flood. Along those lines... does anyone know where I can buy "new" o-rings for this camera? Do they have to be Nikonos-specific o-rings, or is this something I could find at a store that carries various types of multipurpose o-rings? Let me know - thanks!