Classifieds integration with buddypress

Hello everyone,
I'm building a barter site using wordpress 3.6, buddypress 1.8, classifieds and custompress.
I created 4 categories in classified for the barter.
Now I want to make the ads searchable not only for their categories but also with some custom profile fields like city, country and so on.
Anyone can help me?

Thanks in advance

Livio