I'd say don't worry about a banhammer, it can be bypassed, ect. But forget it, not what this thread is about lol
Just saying I've been there (packet injection) along with some of the greatest hackers on NGU. It's been tried in waves (There are some weeks when packet injection is the main discussion of NGU) and each time it doesn't lead anywhere.
So best of luck, but when you say "it shouldn't be hard" just know it'll be a lot more difficult than you probably thought.