Hello there
I have gone through your requirement and all mentioned point very carefully and I am pretty much surely that I can make custom xml, can split the configurable attributes in two columns , make cart floating, can redirect product tab, table make responsive and also can debug and write the solution for the same magento store efficiently according to your need.
I have over 5 years experience in website design and development and I also have a expertise in Graphics design, HTML 5, PHP, CSS 3, javascript, jquery,plugin, template, responsive, bootstrap,
Magento, E commerce, shopping cart, theme development,theme customization,theme installation and theme setup,modules integration,modules development , customization.
I have very good commercial experience in analysis, design, development, testing,website migration and implementation of Websites.
I am ready to start work on your project NOW.
Here, I would like to discuss about this project in detail manner.
Look forward to your positive response.
Thank You,
Regards,
Neha