Wordpress theme edit/customization

Theme to be modified: [login to view URL] . MOST OF THE CUSTOMIZATION THAT I WANT IS NOT AVAILABLE IN THE THEME CUSTOMIZATION OPTIONS!!! Please bid only if you know how to edit/customize a theme. To be done: - Header must look and function as this one: [login to view URL] - Add Prices page in the header, now the prices are in Services page [login to view URL] . Price page will have some categories (represented by icons/animations). The price will be shown under categories once you click a category. Keep the price design seen here [login to view URL] . I will provide list with the prices. - Add Partner page in the header (here will be shown logos of our partners) - Add Promotions page in the header (here will be shown current promotions) - Add Hiring page in the header (here will be shown for what position we are hiring) - Add Term and conditions page in the header - Add cookies notice when sometime visit for the first time the website - Add my logo (I have the PSD + AI) - Add call button that will be always on the mobile site - Shop will be disabled (for now) - Reservation/Booking will be disabled (for now) - Sitemap Creation – creating a sitemap for the website and get this submitted to the major search engines (Google, Bing, Yandex) - Speed Optimization (eliminate render-blocking JavaScript and CSS in above-the-fold content, minify CSS, minify JavaScript, minify HTML, enable GZIP compression, page caching, caching for mobile devices, browser caching, cache preloading, remove query strings from static resources, google fonts optimization, sitemap preloading, lazyload for images and videos...) - Integrating of Google Analytics (host javascript-file ([login to view URL]) locally for a better site speed) - Register site in Google Webmasters - Onpage optimization - Onsite optimization - Optimize Images for fast loading and Better Search Engine Ranking - ALL THE CHANGES DONE MUST USING THE SAME DESIGN