Social Wifi - captive portal

Project Description: We will make a project example, see below; Company provides marketing services for bars/restaurants/retailers and clubs. We want to offer a new service: Social Hotspot. We want to use one type router (with our logo) that is connected to a existing network. The social captive portal must be installed on the router by us. We want to provide free WIFI access for guests in exchange for an email address or 'like' on the restaurant's facebook page, and their Facebook e-mailadress is pushed to our database (one file per bar/restaurant, which can be exported in a CSV. These are simular products: - [login to view URL] - [login to view URL] - [login to view URL] - [login to view URL] - [login to view URL] I need a simplified version of above products. For example: My customer has a restaurant. We want to install an access point where his guests can login to surf the web. But, prior to their access, they must ‘like’ his facebook page on a custom splash screen. When the guest chose to login with facebook, he must ‘like’ the restaurant’s FB page and a post to his wall appears to say he’s sitting in that restaurant now. (or whatever message)On the second visit, or with another device the guest can login with facebook without liking the page again. Please advise me which router could be used by us for this service? You may choose any hardware. I suppose you would go for a solution like wifidog, something based upon chillispot or open wrt. If you accept this project: I would like to receive an estimate of the total price, an end-date. Cut the complete project in 3 or 4 stages with a price per stage. In this way we both can evaluate the project and continue when all things work out as they should. I will not RELEASE MILESTONE upfront, but I will create milestone payment and release based on your performance and progress. When you complete this project to our needs, more work is possible for you. Best regards, Pallab