The next thing you have to do is market research. Get off your butt and talk to people. Confirm that your advantage is real, and that it would definitely motivate them to buy from you.
Remember that you're taking your business to the next level, so you're not plowing new ground. Talking to people who don't already buy from you, and asking them if they would buy from you, enables you to confirm that your differential advantage isn't just a vanity.