Custom WooCommerce Store Development

I need a full-featured WooCommerce store handler from scratch to sell physical products.

Core functionality
• Product reviews and ratings so shoppers can share feedback.
• Real-time inventory management that updates stock levels automatically.
• Integrated shipping and tax calculators that reflect the customer’s location.

Design requirements
• A bespoke theme that matches my brand guidelines.
• Fully responsive pages that look great on mobile, tablet, and desktop.
• Custom product pages with flexible sections for images, specs, and upsells.

Please handle setup, configuration, and testing, then show me how to add products and process orders before we go live. Any popular page-builder, CSS framework, or performance plugin is fine as long as the site stays lightweight and easy to maintain.