promote our kickstarter and get results

We are looking for a experienced marketeer who can promote our Kickstarter with a minimum guaranteed roi. In you briefing tell us what you offer for 50$ and what the return will be . Keep in mind the return must be guaranteed.
the project page is : https://www.kickstarter.com/projects/sietse/wetime-we-plan-your-trip.

Of no estimate for the 50 euros is don. we will not select you. No automatticly bids