DailyBooth Lookalike

I need to build a website that has comparable features and functionality to that of www.DailyBooth.com. The main functionality of course being: 1) Sign up / create, view and manage your own profile 2) Upload a picture from your computer or from a mobile device or email - should be able to add a 'tag' to that uploaded image 3) Navigate to the main page that will be a live feed of pictures coming in to the site 4) See a live map of pictures coming in to the site 5) Add people to a 'follow list' - i.e. select other people whose picture feeds you want to follow Other functionality that doesn't exist on DailyBooth but will be needed for this application 1) Ability for any user to 'vote' for a given photo on a scale from 1-10 I realize these are very high level requirements. I want to get a preliminary sense for how much work this site would require. Once we start engaging I will provide you with far more detailed requirements and specs. Please quote this as if you were building the entire website - i.e. backend logic and basic front-end development of HTML and CSS. DO NOT INCLUDE any special graphic work in your quote. I would like to handle any specific logos and graphics separately. Thank you for your interest!