wordpress classipress theme customization

the classipress wordpress theme from [login to view URL], looking for customization work, wanting to add a feature listings slider on the category search results pages, they will only display results for that category searched for. Also so when someone places a advert for 45 days they have the option to upgrade it to a feature advert on either homepage feature slider or on the search results page feature slider or both, the feature ads have the option to display for either 7,14,21,30 days with out effecting the original booking of 45 days. each of the 7,14,21,30 days and each slider have there own price's. for example you place the advert for the 45 days , you can place it on the homepage slider for 7 days at £3 14 days at £5 21 days at £7 30 days at £9 search result category slider 7 days at £1 14 days at £2 21days at £3 30 days at £4 or homepage & search result category slider 7 days at £ 3.50 14 days at £ 6 etc etc also we want there ads only to appear for the city that has been selected, think this plugin can help with this [login to view URL]