Shari,
As a film critic (and a well written one!), I hope you will appreciate my "reviewing" your questions. My concern is why would a film critic ask these questions. Certainly this information wouldn't be useful to your readers? Or possibly, it's a new cinematic piece you're working on? Highly unlikely.
Your questions regarding the specific features on these yachts dictates you, or someone you are working with, has knowledge beyond... such as the editorial staff at a yachting magazine. Sorry Shari, but this has the makings of a scary movie.
In answer to your questions... each one of these features is custom in nature. The price will be determined by the labor and materials involved, which will vary widely based on the mood of the supplier at the time.
YachtForums is a website for yacht owners to share experience and learn from each other. It is not a collective knowledge pool for writers to obtain information to further their publication.
Carl Camper, Publisher
www.YachtForums.com