Pre-Order Website Setup

I already have a site in place; what’s missing is a smooth pre-order flow. I need you to configure a system where customers can place a pre-order and pay the full amount up front. Each product page must clearly display an estimated delivery range so expectations are set before checkout...

(Budget: $2 - $8 USD, Jobs: CSS, HTML, JavaScript, Payment Processing, PHP, Web Application, Web Development, Website Optimization)