Design a web service that creates a digital signage MRSS feed using Zoopla property search results

Design a web service that creates an MRSS feed suitable for digital signage that is generated from Zoopla search results. Specifically we need to show all of the properties listed by a specific estate agent - one MRSS feed for sales and another for rentals. An example of what the final MRSS should look like can be found here: [login to view URL] Each MRSS feed should automatically update periodically and should be secured using basic HTTP authentication. The content must be branded to the Estate Agent using there logo and brand colours. Look forward to hearing your suggestions! Kind Regards, Jack