@Hegazy, you are an open data activist! And so am I. 
I may be able to help. Not as myself, but because I am the administrator and founder of the Spaghetti Open Data mailing list, by far the most active open data community in the Italian language. We are about 1200 people now, and the mailing list spews out 400-500 messages a month. Our first initiative, back in 2010, was to do exactly what you are doing now: build a national open data website, that at the time was missing (about a year after we had gone live, the Italian government got around to launching http://dati.gov.it.
I am very sure there are “pre-developed” CKAN-integrated sites you can download off some GitHub repo and install. Some of my friends recently swear by DKAN, which is Drupal: so you get the CMS part and the CKAN part in one website. A ready-to-install version of DKAN is here (I have not tried it myself).
What do you need to get started? I might be able to get some help in Italy.