Create Magento bulk quantity price grid / table - REPOST

I am reposting this project since the last coder used could not accurately complete the project per our instructions. The previous coder started some of the work, however additional work is needed to complete the project. The coder who is awarded this project can decide to work with the previous coders work already done or create their own new design if desired. We are using the popular Ultimo theme in Magento and need a responsive bulk quantity price grid designed and programmed within this custom Ultimo theme. Each product will have different bulk quantities, prices, and labels so all data is unique to each product and therefore must be individually editable. Some products will only have 1 row of pricing, while others may have 3 rows of pricing. Some products will only have 2 quantity columns. Some products will have different labels and text. 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 such as smartphones and tablets like the Ultimo theme currently 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. Again, here is a summary of details needed in this project: 1. All fields shown must be individually editable within the standard Magento product price admin area. The last coder used could not accomplish this and we could not edit each field individually and we could not add additional pricing rows or edit the labels. 2. Price grid must be responsive and the format must properly adjust to fit various screens such as smartphones and tablets as well as normal computer screens. The last coder used had formatting issues on all devices including regular computer screens. The attached doc will show these formatting issues that need to be corrected. 3. We may use an extension to hide prices to users that are not logged-in. The pricing grid therefore needs to work with such an extension. 4. We must be able to update all pricinig, quantities, and labels by using the built-in Magento bulk csv upload feature. We have hundreds of products with different pricing, quantity and label variables and must be able to update them in bulk instead of manually. 5. On product search pages, related items pages, or upsell item pages, the "as low as" price must show the lowest price within the price grid for each individual product. 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 10 days or less. Again please review the attached file. Thanks.