I think most people who are starting out and make small amounts, don't even pay taxes, by using epassporte or other means .... Not that I support it, but I'm just stating the fact.
I see you worry about proper setup/banks etc, but if you're a n00b, I'd worry how to get started out in this biz, since the easy days are long gone.
Do you have a plan already? Or do you have already much biz backgroud and are going to invest $100k into adult?
If not, I'd really worry about how you're going to do it.
What's the point in having the best setup and best bank if you're going to be struggling to make $500 per month?
