Aidez-moi avec le marketing

Hi For my project, I need to raise funds on Internet. We will do a kind of crowdfunding, but instead to give goodies to people, we will give them back their money x2. I need someone, expert in marketing/commuication to create all the communication around it. I can pay a % of the total amount raised. We need around 400.000 dollars. More information about the project in PM. Thanks