Help plugin!!

[toody]

I want to ask. Could anyone here programmed regional plugin?
I am in the category of "restaurants" Eg. (http://www.domain.com/restaurant-c5-p1.html) and I want to sort them by city Eg. (http://www.domain.com/restaurant-paris-c5-p1. html). I will be a plugin paid who will know the programed.