Yea you'll usually get good advice here, but not always. You asked good questions, and you're obviously still researching fish, just like me!
Just start slow and you'll be golden.
Dumb mistakes happen, the reason we fall is so we can get back up again. The bad thing with SW
tanks is your mistakes will cost you money, but everything in life has consequences.
So keep doing research on fishes, and let me know what you come up with, cause I'm researching tonight too! And post some pics of the tank!
And you got Carey on your side, and from what I've noticed, if she's on your side everyone at AA is!