Open Cart Customization & module

Hell This is an open cart website [login to view URL] You will have to do a clean installation on the website. Please I don't want you to install any free module out there I have tried all that is not stable or its with errors I need a module for these modules should be open source so that I can use it on other sites as well. 1. SEO friendly URL 2. Bulk uploading for products, categories, brands, images. either in excel or csv or.....any format. 3. A documentation how to use these modules PLUS 1. ) I need some modification in it i want to replace the name Model to *Composition* *** *Manufacture to *Company** 2.) Brands Drop down character length is only 32 need to increase it to 90 as well as the frame or else the drop down bar will go out off order from the frame. I hope you understood. 3) Need to add another field as Packing Details