There are marketing companies that are based in the USA and charge less than what you want to do based off of what you said. I was talking to one the other day that sends out 500 mailers, follows up with these people till they get a yes or no and then sends out another 500 the next month for a year. 500 bucks a month with a year contract. You might want to check that out. We ran a similiar program here with a lady who wanted to supplement her income. She soon quit because she didnt see any benefit and we were paying her 10 dollars an appointment.