I need a data recovery expert to help recover 7000 articles that were once online

General information for the website: It is built in Orchard CMS and has missing articles that we urgently need back
Description of requirements/features: We need the article content capturing so we're able to load it on the site again.
Extra notes: The website www.teesdalemercury.co.uk was deleted by mistake last week. We've just managed to restore the site so the framework is there, and the client has added some recent articles to the site from the past week or so.

Before that, the last articles are from March 2013 which are in place on the site... So, we have a mass (over 7000) of articles from a 2 year period (March 2013 - March 2015) that are missing from the site.

The server is was on was deleted and the data from the server is unrecoverable - I have clarified this with the server hosts and there is no way to get that data back from there.

I need someone with a knowledge of the online world to find as many of the articles as possible to be able to restore to the site.

Please get in touch if you know of a proven way of making this work 100%.