Hi,
This is a very common setup. Are you sure you really want to add a separate section for advanced search? You could combine most of your requirements into one search box, simply by adding all the fields you want to be searchable, for instance using the multi-match query. Perhaps with the exception of language and country. These can be added as filters using a bool query.
Even if you should decide you want to go for a full blown advanced search where users have to hit the correct input box for each part, you still only need one index, and most likely just one type as well. Good luck!