I need some category customization in Wordpress Theme.

Avg Bid (EUR)
Project Budget (EUR)
€30 - €250

Project Description:
I want to buy this Wordpress Directory theme - http://demos.appthemes.com/vantage/,but need some category customization.
Currently,the listings goes to a category example: American - http://demos.appthemes.com/vantage/listings/category/american/
I want to add drop down field with locations on create listing page: http://demos.appthemes.com/vantage/create-listing/
,so when someone submit listing for example to category American : http://demos.appthemes.com/vantage/listings/category/american/
and choose location for example: Chicago ,the listing should go to a category American: http://demos.appthemes.com/vantage/listings/category/american/
and to category Chicago/American. So your job will be to add location categories in wordpress and i also need to have variable meta data available for changing on those location categories.
P.S.: Here is how these location categories have to look (this is my own script)
When you go to submit listing page: http://www.thecheaperremovals.co.uk/listings/submit ,you have to choose City and then Category - lets say City: North London, and category: Man and Van
So now the lisitng belong to categories:
1. http://www.thecheaperremovals.co.uk/man-and-van
2. http://www.thecheaperremovals.co.uk/north-london/man-and-van

Skills required:
PHP, Software Architecture, Wordpress
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