I'm assuming you're referring to the Magnum Yachts.
Not sure too many around here will know much about them, but I may be surprised.
This is more of a "go-fast" crowd.
When I think of Magnum, I think of something like the Maltese, or the Sport - 27-28' go fast boats.
Good luck with your story. It sounds interesting.
Personally, It would be a story I would be interested in reading or watching on the screen.
Best of luck to you.