Create Magento bulk quantity price grid / table

We are using the popular Ultimo theme in Magento and need a bulk quantity price grid designed and programmed within this custom theme. Each product has unique/different variables within this theme. Each product will have different bulk quantities, prices, and labels so all data is unique to each product. Therefore each product is unique and must be able to customize. Some products will only have 1 row of pricing, while others may have 3 rows. Some products will only have 2 quantity columns. I also need the main Magento price removed or hidden since we are only going to use this grid pricing on the site. We must also be able to update all of these fields in the price grid shown with the bulk csv import feature in Magento. We have hundreds of products and need to update using the import feature instead of manually changing these details. We plan on using a Magento extension that hides prices for non-registered users such as [login to view URL] . This price grid must also be programmed to work with this extension so we can hide this pricing grid to non-registered users. Any programming done must not modify the core Magento files or any core Ultimo theme files. We don’t want problems when updating both Magento or the Ultimo theme in the future. We would also like to know if a simple editor can be created to globally modify/change the price grid size, colors, shading, font, and font size. Please be aware that this grid must be "responsive" and adjust to different screen sizes and resolutions like the Ultimo theme does. I have uploaded a screenshot showing the details and explanation on this custom grid/table needed. Please review the details before bidding. If you have a better way of setting this up (such as a separate custom attribute), then please let me know. We will also need other Magento work done to this site, so if you do good work on this project then we can hire you for additional work. This project needs to be completed in 3 days or less. Again please review the attached file. Thanks.