Hybrid WooCommerce Site From Scratch

I need a fully custom WooCommerce store that combines hard-coded front-end files with the convenience of the WordPress dashboard. The shop will sell physical goods, so product, cart and checkout flows must be rock-solid and fast... (Budget: ₹37500 - ₹75000 INR, Jobs: CSS, Database Management, HTML, Payment Gateway Integration, PHP, Web Development, WooCommerce, WordPress)