Get 1000 people into my email list in 30 Days - $100 Budget

Hey, I need you to get 1000 people into my double optin mailing list in 15 days from now. Only white hat advertising methods allowed. No spam. All that's required is an email address. The offer people are signing up is free. No credit card details needed. You will be paid UPON COMPLETION IF THE TARGET OF OPTIN SUBSCRIBERS IS REACHED. No Escrow. (I've had a lot of people promise they would deliver and they didn't) to avoid blind bidding, tell me what marketing methods you'll use to promote the offer. Thank you.