Heh....I hear ya man. Sometimes it's good to keep things simple. As far as how stock you want to make the Regal...it's all about who you think will buy it. If grandma wants it, then she doesn't want it to be loud....if your cousin wants it, then maybe they want a little bit of thump with it.
I've found that a bone stock car is the best way to market to the masses. But I'm about getting top dollar as fast as possible.
Twin charge would be cool though. I'd love to see something like that.