Help me with Marketing

I am building a content management system for users to create and play story-based treasure hunt games for ios and Android. This is different from what is now available because it will feature games that use offline maps, videos, voice and text so players can participate in hunts in other countries without expensive roaming fees. They can visit areas they would want to see as a tourist but with a sense of purpose following a stroy. Another key difference is its focus on user driven content. My goal is to link the games to create a living, organic creation – the first multiplayer; multi-author, open source epic story forum that I hope can become interlinked to create a story web. I would like to assemble a three part team, marketing/design, development and vision, to complete the project in three steps. I would oversee overall direction and make decisions but I would like the marketing team to lead. I have completed a rough prototype as an example of how a user created game would look. The first stage would be to work with a design and marketing team to finish this prototype, and reach final decisions about the technological features needed for later stage marketing. (Discussion forums, website, etc.) In the second stage, the marketing and design team will contract a developer and monitor that the programmer stays true to the vision and prototype. Myself and marketing will test, and after bugs are worked through with development stage three begins with a more comprehensive marketing campaign. For now I would like bids for only stage one and two; finishing the prototype and logos and contracting (possible freelance) a developer and monitoring their progress. The offered price is for stage one and two and stage three will have a much larger budget. I will pay the programmer separately. I have more details including long term vision, programming lead and list of questions for shortlisted candidates.