Add Extensions to Opencart store.

Hello. I have an Opencart store, and am after some extensions adding onto it. These are as follows. 1. I want an extension putting on that will automatically create a google feed and be accepted by google, with serial numbers in etc. (the one in the store gets rejected since the google update) 2. Add a wordpress blog to the site, that looks like the site. 3. Add the facebook thing - [login to view URL] 4. The google sitemap part - [login to view URL] 5. Create an RSS feed with button on site. All work must be completed to high standard and working before payment.