admin product handling module for a used car dealers website

Hi, I need some one to develop admin panel where I can add products, offers, coupon and all the available option to manage the products in a professional website. Admin template in html/css will be provided for this project. [login to view URL]?WT.ac=category_item&WT.seg_1=category_item&WT.z_author=mosaicpro Project requirements: Configuration Categories/Products Products attributes/details Dealers and manufacturers Featured Products Free gifts option Products promotional period Excel import/export Vouchers/coupons