Claudio - I don't know the answers to your questions. I've never needed to buy any of the satellite equipment Neptune sells, so their forum is the best place to get the answers you seek. Just repost it there. (Click quote, then copy and paste it as a new post over there.)
Poukie's a keeper. Unfortunately, since we took that picture at MACNA, she has since found a man. Very annoying, and totally unfair. I was sure I was next in line. :lol: Maybe she'll chime in with some kind of ranking system so I know where I stand, as she does read this thread from time to time. Poukie, be mine! :inlove: Even 356Ray seems to agree.
The window limo tint is fine. You can even use Petroleum Jelly as the binder, applying it liberally on the glass, then lay the tint on that goo, and squeegee from the center outwards to get all the bubbles out. Once done, trim it with a razor blade to get rid of the excess.
The nice thing is, you can later remove it if necessary, and there is far less chance water or salt can get between it. For added security, you could apply tape to the tank's upper trim and don't even press it against the tint. Any water would run off the tape like a skirt or deflector.