Nobody's going to shoot you as long as we know in front what you're doing. Just because somebody reads one thread of yours, it doesn't mean they've read them all. If you got shot anyway, well, it's the internet
As for boats, there are a lot of them that could do what you describe. Depending on what you mean by fast, you might want a custom rather than a production boat. Production multihulls, especially cats, are often aimed towards a market that seeks more accomodation space/luxury/bells and whistles etc. Those sorts of features usually result in a fatter and slower hull
I can't remember the exact quote, but trimaran designer
Dick Newick once said words to the effect that "Everybody wants three things in multihulls - great accomodations, high speed, and economical cost. You can have any two."
For some ideas of my favorite type of multihulls you might visit ChrisWhiteDesigns.com.