E-Commerce Website Improvement & Development

I need an experienced full-stack e-commerce developer to improve my existing website and admin panel. Requirements: 1) Dynamic hero section controlled from admin (images, tags, text). 2) All homepage images/content editable from admin. 3) Fix category navigation and scroll position. 4) Add better product/category search and filters. 5) Genuine customer review system after successful delivery, controlled by admin. 6) Fix wishlist sharing. 7) Redesign product detail page with multiple images, variants, sizes, weight and better UI. 8) Fix cart duplicate product issues. 9) Improve My Orders with filters and UI. 10) Improve admin: reviews, payments, products, weight, invoices, customer/order management and security. 11) Fix My Profile and user popup. 12) Add admin-created coupons for users. 13) Add phone OTP login along with email login. 14) Make the complete website fully responsive and mobile-friendly while maintaining the desktop design and functionality.

Please review the existing codebase and provide your timeline and price.