Integration of Joomla Website with Third Party Ecommerce Sites

My company is looking to partner with one e-commerce site to raise funds few charity projects. When a customer makes a purchase from e-commerce site, during checkout, he will be shown a small list of those projects and asked if he wants to donate to any one of these projects. Customer will have option to select the project and donate any amount he wish. On Successful transaction, my website will store all these details in DB - ecommerce site name, user details(email id), project ID, donated amount. ECom site will sync up with KindHeartz at regular intervals automatically via web service or KindHeartz can manually request for sync. Ecom site will fetch the projects to be displayed to customer via web service at regular intervals and store it locally to avoid fetching them at run time. Alternatively, my website can send a request to update the projects on Ecom Sites We can have tie ups with multiple ecom sites, so ecom partner ID should also be taken into account For more details, pls refer the attached document. For testing, the developer can use a reference site with paypal or any other payment gateway. We can provide a sample site if required Our Website : [login to view URL] Framework Used: Joomla and K2 We need to enhance our Donation Sections in Classifieds. You can have a look at the currently listed Donation projects [login to view URL] While submitting the bid, please mention your detailed plan for execution, time, bid amount, plan for testing, any sample layouts or references Rgds Avneet