Need some custom Shopify theme updates

Hello, We would ideally like to have a person to rely on for on-going customisations for our Shopify store, www.thegingertots.com. We are just about to start our sales. Our immediate customisation requirements for our Shopify store are listed below: 1. Reduce site load time (Increase page speed score) 2. Advance Google Analytics settings 3. Product page image zoom and slideshow functionality 4. Product Page - Display all the thumbnail images in the same size 5. Fixed Main menu on all screen sizes 6. Change the search results display page design on all screens to resemble collection pages. 7. My Account - Update the format of order history page to look more clean 8. Track your order page (Order Status page) 9. Icons for phone and email in the footer ‘Contact Us’ section 10. Sidebar filter issue for same collection filter groups - The sidebar filter works well when one filter option is selected in one particular "Collection Filter Group" or one in different "Collection Filter Groups". But, when multiple filter options are selected in any single "Collection Filter Group", it shows "No products match these filters". Example: You can click on the main category "Toys & Play", then click on two different brands like "Djeco" and "Mudpuppy". When the 2nd brand is selected, it shows "No products match these filters". My guess is, technically, the code is trying to show products that are both "Djeco" AND "Mudpuppy" instead of "Djeco" OR "Mudpuppy" products. This needs to be fixed only for this particular scenario. 11. Clicking on a main menu item (Toys & Games) should open the sub-menu 12. In phone view, clicking on any part of sub-menu should open it and show all the categories. Right now, the user has to click on the ‘+’ sign. 13. Featured Products, You may also like, etc. Clicking on the arrow once the product line ends should not do anything. Right now, the user is taken to the product page of the product below the arrow. 14. Automatic zip code delivery validation on delivery page - [login to view URL] 15. Shop: All collections —> Disable this link 16. Add a default ‘Sort By’ heading to filter products section on the top right corner of collection pages. 17. Change the color for the ‘Thank you’ msg upon successful submission of form in the Contact Us page. The items are listed in order of priority. Please let me know if you will be able to take up this project and your quote for it. Thank you, Samhitha