Website development. Need expert!

Looking to build a tool similar to http://manageflitter.com. This helps you manage multiple accounts and includes ability to: Preschedule posts Autofollow keywords and hashtags See heat map of tweets based on search keywords by geolocation Show scheduled tweets on calendar - so you can easily view how many are scheduled per day and post on empty days Unfollow select followers, followers not following you back, accounts who are inactive, have no profile image or use a different language to you (include safe list that cannot be unfollowed) Automatically direct message to new followers Type in a Twitter profile see highest engagement based on Retweets, Replies, Link Clicks etc View popularity of posts based on post dates and time Integrate Twitter lists and see tweet stream for each list See analytics of people who followed or unfollowed you (including trends over time) Set up alerts to receive text or email notification on @mentions or specific keywords In addition need to add functionality to like [login to view URL] Use meta tags to group status updates into categories Update Facebook and Twitter status instantly Include email notifications The user interface would be like [login to view URL] Need fixed price at first then hourly for maintenance. Payment will be released ONLY once development is complete. Will not give initial milestone. Do NOT bid if you don't agree with this.