Wordpress plugin / mod

Hey guys, Im using this wordpress theme that i bought: [login to view URL] This is how a category page looks like: [login to view URL] I need a plugin where the category page would look like this: [login to view URL] Off course, the above image is just a mockup so you can have an idea, i'll need you to make it more nice looking that that :) And there are a few more details that i want that are not diplayed on the image, but if you can do that plugin, those details will be no problem... The plugin will need to have a "Settings" page on the wordpress dashboard, so i can assign an image for each category and also choose what categories / subcategories i want to look like that. I know its not a simple work, so please only bid if you are absolutly sure you can do this. Budget is 100$. Thanks a lot.